K8s部署原生的CICD工具Tekton-基于YAML
Tekton
介绍
- Tekton 是一个功能强大且灵活的 Kubernetes 原生开源框架，是谷歌开源的，功能强大且灵活，开源社区也正在快速的迭代和发展壮大，主要用于创建持续集成和交付（CI/CD）系统。通过抽象底层实现细节，用户可以跨多云平台和本地系统进行构建、测试和部署。另外，基于kubernetes CRD定义的pipeline流水线也是Tekton最重要的特征。
- 它原本是 knative 项目里面一个叫做 build-pipeline 的子项目，用来作为 knative-build 的下一代引擎。然而，随着 k8s 社区里各种各样的需求涌入，这个子项目慢慢成长为一个通用的框架，能够提供灵活强大的能力去做基于 k8s 的构建发布。Tekton 其实只提供 Pipeline 这个一个功能，Pipeline 会被直接映射成 K8s Pod 等 API 资源。而比如应用发布过程的控制，灰度和上线策略，都是我们自己编写 K8s Controller来实现的，也就意味着 Tekton 不会在K8s 上盖一个”大帽子“，比如我们想看发布状态、日志等是直接通过 K8s 查看这个 Pipeline 对应的 Pod 的状态和日志，不需要再面对另外一个 API。
自动发布流程
- 用户把需要部署的应用先按照一套标准的应用定义写成 YAML 文件（类似 Helm Chart）；
- 用户把应用定义 YAML 推送到 Git 仓库里；
- Tekton CD (一个 K8s Operator) 会监听到相应的改动，根据不同条件生成不同的 Tekton Pipelines；
- Tekton CD 的操作具体分为以下几种情况：
- 如果 Git 改动里有一个应用 YAML 且该应用不存在，那么将渲染和生成 Tekton Pipelines 用来创建应用。
- 如果 Git 改动里有一个应用 YAML 且该应用存在，那么将渲染和生成 Tekton Pipelines 用来升级应用。这里我们会根据应用定义 YAML 里的策略来做升级，比如做金丝雀发布、灰度升级。
- 如果 Git 改动里有一个应用 YAML 且该应用存在且标记了“被删除”，那么将渲染和生成 Tekton Pipelines 用来删除应用。确认应用被删除后，我们才从 Git 里删除这个应用的 YAML
术语
Tekton 为Kubernetes 提供了多种 CRD 资源对象，可用于定义我们的流水线，主要有以下几个CRD资源对象：
- Task：表示执行命令的一系列步骤，task 里可以定义一系列的 steps，例如编译代码、构建镜像、推送镜像等，每个 step 实际由一个 Pod 里的容器执行。
- TaskRun：task只是定义了一个模版，taskRun 才真正代表了一次实际的运行，当然你也可以自己手动创建一个taskRun，taskRun创建出来之后，就会自动触发task描述的构建任务。
- Pipeline：一组任务，表示一个或多个task、PipelineResource 以及各种定义参数的集合。
- PipelineRun：类似task和taskRun的关系，pipelineRun也表示某一次实际运行的 pipeline，下发一个 pipelineRun CRD 实例到 Kubernetes后，同样也会触发一次 pipeline 的构建。
- PipelineResource：表示pipeline输入资源，比如github上的源码，或者pipeline 输出资源，例如一个容器镜像或者构建生成的jar包等。
安装Tekton
准备镜像和安装文件
#把tekton-0-12-0.tar.gz和busybox-v-1-0.tar.gz上传到worker node机器上，手动解压：
docker load -i tekton-0-12-0.tar.gz
docker load -i busybox-v-1-0.tar.gz
vim release.yaml# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: v1
kind: Namespace
metadata:
name: tekton-pipelines
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: policy/v1beta1
kind: PodSecurityPolicy
metadata:
name: tekton-pipelines
spec:
privileged: false
allowPrivilegeEscalation: false
volumes:
- 'emptyDir'
- 'configMap'
- 'secret'
hostNetwork: false
hostIPC: false
hostPID: false
runAsUser:
rule: 'RunAsAny'
seLinux:
rule: 'RunAsAny'
supplementalGroups:
rule: 'MustRunAs'
ranges:
- min: 1
max: 65535
fsGroup:
rule: 'MustRunAs'
ranges:
- min: 1
max: 65535
---
# Copyright 2020 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: tekton-pipelines-controller-cluster-access
rules:
- apiGroups: [""]
# Namespace access is required because the controller timeout handling logic
# iterates over all namespaces and times out any PipelineRuns that have expired.
# Pod access is required because the taskrun controller wants to be updated when
# a Pod underlying a TaskRun changes state.
resources: ["namespaces", "pods"]
verbs: ["list", "watch"]
# Controller needs cluster access to all of the CRDs that it is responsible for
# managing.
- apiGroups: ["tekton.dev"]
resources: ["tasks", "clustertasks", "taskruns", "pipelines", "pipelineruns", "pipelineresources",
"conditions"]
verbs: ["get", "list", "create", "update", "delete", "patch", "watch"]
- apiGroups: ["tekton.dev"]
resources: ["taskruns/finalizers", "pipelineruns/finalizers"]
verbs: ["get", "list", "create", "update", "delete", "patch", "watch"]
- apiGroups: ["tekton.dev"]
resources: ["tasks/status", "clustertasks/status", "taskruns/status", "pipelines/status",
"pipelineruns/status", "pipelineresources/status"]
verbs: ["get", "list", "create", "update", "delete", "patch", "watch"]
- apiGroups: ["policy"]
resources: ["podsecuritypolicies"]
resourceNames: ["tekton-pipelines"]
verbs: ["use"]
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
# This is the access that the controller needs on a per-namespace basis.
name: tekton-pipelines-controller-tenant-access
rules:
- apiGroups: [""]
resources: ["pods", "pods/log", "secrets", "events", "serviceaccounts", "configmaps",
"persistentvolumeclaims", "limitranges"]
verbs: ["get", "list", "create", "update", "delete", "patch", "watch"]
# Unclear if this access is actually required. Simply a hold-over from the previous
# incarnation of the controller's ClusterRole.
- apiGroups: ["apps"]
resources: ["deployments"]
verbs: ["get", "list", "create", "update", "delete", "patch", "watch"]
- apiGroups: ["apps"]
resources: ["deployments/finalizers"]
verbs: ["get", "list", "create", "update", "delete", "patch", "watch"]
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: tekton-pipelines-webhook-cluster-access
rules:
- # The webhook needs to be able to list and update customresourcedefinitions,
# mainly to update the webhook certificates.
apiGroups: ["apiextensions.k8s.io"]
resources: ["customresourcedefinitions", "customresourcedefinitions/status"]
verbs: ["get", "list", "update", "patch", "watch"]
- apiGroups: ["admissionregistration.k8s.io"]
# The webhook performs a reconciliation on these two resources and continuously
# updates configuration.
resources: ["mutatingwebhookconfigurations", "validatingwebhookconfigurations"]
# knative starts informers on these things, which is why we need get, list and watch.
verbs: ["list", "watch"]
- apiGroups: ["admissionregistration.k8s.io"]
resources: ["mutatingwebhookconfigurations"]
# This mutating webhook is responsible for applying defaults to tekton objects
# as they are received.
resourceNames: ["webhook.pipeline.tekton.dev"]
# When there are changes to the configs or secrets, knative updates the mutatingwebhook config
# with the updated certificates or the refreshed set of rules.
verbs: ["get", "update"]
- apiGroups: ["admissionregistration.k8s.io"]
resources: ["validatingwebhookconfigurations"]
# validation.webhook.pipeline.tekton.dev performs schema validation when you, for example, create TaskRuns.
# config.webhook.pipeline.tekton.dev validates the logging configuration against knative's logging structure
resourceNames: ["validation.webhook.pipeline.tekton.dev", "config.webhook.pipeline.tekton.dev"]
# When there are changes to the configs or secrets, knative updates the validatingwebhook config
# with the updated certificates or the refreshed set of rules.
verbs: ["get", "update"]
---
# Copyright 2020 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: tekton-pipelines-controller
namespace: tekton-pipelines
rules:
- apiGroups: [""]
resources: ["configmaps"]
verbs: ["list", "watch"]
- # The controller needs access to these configmaps for logging information and runtime configuration.
apiGroups: [""]
resources: ["configmaps"]
verbs: ["get"]
resourceNames: ["config-logging", "config-observability", "config-artifact-bucket",
"config-artifact-pvc", "feature-flags", "config-leader-election"]
---
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: tekton-pipelines-webhook
namespace: tekton-pipelines
rules:
- apiGroups: [""]
resources: ["configmaps"]
verbs: ["list", "watch"]
- # The webhook needs access to these configmaps for logging information.
apiGroups: [""]
resources: ["configmaps"]
verbs: ["get"]
resourceNames: ["config-logging", "config-observability"]
- apiGroups: [""]
resources: ["secrets"]
verbs: ["list", "watch"]
- # The webhook daemon makes a reconciliation loop on webhook-certs. Whenever
# the secret changes it updates the webhook configurations with the certificates
# stored in the secret.
apiGroups: [""]
resources: ["secrets"]
verbs: ["get", "update"]
resourceNames: ["webhook-certs"]
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: v1
kind: ServiceAccount
metadata:
name: tekton-pipelines-controller
namespace: tekton-pipelines
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: tekton-pipelines-webhook
namespace: tekton-pipelines
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
name: tekton-pipelines-controller-cluster-access
subjects:
- kind: ServiceAccount
name: tekton-pipelines-controller
namespace: tekton-pipelines
roleRef:
kind: ClusterRole
name: tekton-pipelines-controller-cluster-access
apiGroup: rbac.authorization.k8s.io
---
# If this ClusterRoleBinding is replaced with a RoleBinding
# then the ClusterRole would be namespaced. The access described by
# the tekton-pipelines-controller-tenant-access ClusterRole would
# be scoped to individual tenant namespaces.
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
name: tekton-pipelines-controller-tenant-access
subjects:
- kind: ServiceAccount
name: tekton-pipelines-controller
namespace: tekton-pipelines
roleRef:
kind: ClusterRole
name: tekton-pipelines-controller-tenant-access
apiGroup: rbac.authorization.k8s.io
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
name: tekton-pipelines-webhook-cluster-access
subjects:
- kind: ServiceAccount
name: tekton-pipelines-webhook
namespace: tekton-pipelines
roleRef:
kind: ClusterRole
name: tekton-pipelines-webhook-cluster-access
apiGroup: rbac.authorization.k8s.io
---
# Copyright 2020 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: RoleBinding
metadata:
name: tekton-pipelines-controller
namespace: tekton-pipelines
subjects:
- kind: ServiceAccount
name: tekton-pipelines-controller
namespace: tekton-pipelines
roleRef:
kind: Role
name: tekton-pipelines-controller
apiGroup: rbac.authorization.k8s.io
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: RoleBinding
metadata:
name: tekton-pipelines-webhook
namespace: tekton-pipelines
subjects:
- kind: ServiceAccount
name: tekton-pipelines-webhook
namespace: tekton-pipelines
roleRef:
kind: Role
name: tekton-pipelines-webhook
apiGroup: rbac.authorization.k8s.io
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
name: clustertasks.tekton.dev
labels:
pipeline.tekton.dev/release: "devel"
version: "devel"
spec:
group: tekton.dev
preserveUnknownFields: false
validation:
openAPIV3Schema:
type: object
# One can use x-kubernetes-preserve-unknown-fields: true
# at the root of the schema (and inside any properties, additionalProperties)
# to get the traditional CRD behaviour that nothing is pruned, despite
# setting spec.preserveUnknownProperties: false.
#
# See https://kubernetes.io/blog/2019/06/20/crd-structural-schema/
# See issue: https://github.com/knative/serving/issues/912
x-kubernetes-preserve-unknown-fields: true
versions:
- name: v1alpha1
served: true
storage: true
- name: v1beta1
served: true
storage: false
names:
kind: ClusterTask
plural: clustertasks
categories:
- tekton
- tekton-pipelines
scope: Cluster
# Opt into the status subresource so metadata.generation
# starts to increment
subresources:
status: {}
conversion:
strategy: Webhook
webhookClientConfig:
service:
name: tekton-pipelines-webhook
namespace: tekton-pipelines
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
name: conditions.tekton.dev
labels:
pipeline.tekton.dev/release: "devel"
version: "devel"
spec:
group: tekton.dev
names:
kind: Condition
plural: conditions
categories:
- tekton
- tekton-pipelines
scope: Namespaced
# Opt into the status subresource so metadata.generation
# starts to increment
subresources:
status: {}
version: v1alpha1
---
# Copyright 2018 The Knative Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
name: images.caching.internal.knative.dev
labels:
knative.dev/crd-install: "true"
spec:
group: caching.internal.knative.dev
version: v1alpha1
names:
kind: Image
plural: images
singular: image
categories:
- knative-internal
- caching
shortNames:
- img
scope: Namespaced
subresources:
status: {}
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
name: pipelines.tekton.dev
labels:
pipeline.tekton.dev/release: "devel"
version: "devel"
spec:
group: tekton.dev
preserveUnknownFields: false
validation:
openAPIV3Schema:
type: object
# One can use x-kubernetes-preserve-unknown-fields: true
# at the root of the schema (and inside any properties, additionalProperties)
# to get the traditional CRD behaviour that nothing is pruned, despite
# setting spec.preserveUnknownProperties: false.
#
# See https://kubernetes.io/blog/2019/06/20/crd-structural-schema/
# See issue: https://github.com/knative/serving/issues/912
x-kubernetes-preserve-unknown-fields: true
versions:
- name: v1alpha1
served: true
storage: true
- name: v1beta1
served: true
storage: false
names:
kind: Pipeline
plural: pipelines
categories:
- tekton
- tekton-pipelines
scope: Namespaced
# Opt into the status subresource so metadata.generation
# starts to increment
subresources:
status: {}
conversion:
strategy: Webhook
webhookClientConfig:
service:
name: tekton-pipelines-webhook
namespace: tekton-pipelines
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
name: pipelineruns.tekton.dev
labels:
pipeline.tekton.dev/release: "devel"
version: "devel"
spec:
group: tekton.dev
preserveUnknownFields: false
validation:
openAPIV3Schema:
type: object
# One can use x-kubernetes-preserve-unknown-fields: true
# at the root of the schema (and inside any properties, additionalProperties)
# to get the traditional CRD behaviour that nothing is pruned, despite
# setting spec.preserveUnknownProperties: false.
#
# See https://kubernetes.io/blog/2019/06/20/crd-structural-schema/
# See issue: https://github.com/knative/serving/issues/912
x-kubernetes-preserve-unknown-fields: true
versions:
- name: v1alpha1
served: true
storage: true
- name: v1beta1
served: true
storage: false
names:
kind: PipelineRun
plural: pipelineruns
categories:
- tekton
- tekton-pipelines
shortNames:
- pr
- prs
scope: Namespaced
additionalPrinterColumns:
- name: Succeeded
type: string
JSONPath: ".status.conditions[?(@.type==\"Succeeded\")].status"
- name: Reason
type: string
JSONPath: ".status.conditions[?(@.type==\"Succeeded\")].reason"
- name: StartTime
type: date
JSONPath: .status.startTime
- name: CompletionTime
type: date
JSONPath: .status.completionTime
# Opt into the status subresource so metadata.generation
# starts to increment
subresources:
status: {}
conversion:
strategy: Webhook
webhookClientConfig:
service:
name: tekton-pipelines-webhook
namespace: tekton-pipelines
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
name: pipelineresources.tekton.dev
labels:
pipeline.tekton.dev/release: "devel"
version: "devel"
spec:
group: tekton.dev
names:
kind: PipelineResource
plural: pipelineresources
categories:
- tekton
- tekton-pipelines
scope: Namespaced
# Opt into the status subresource so metadata.generation
# starts to increment
subresources:
status: {}
version: v1alpha1
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
name: tasks.tekton.dev
labels:
pipeline.tekton.dev/release: "devel"
version: "devel"
spec:
group: tekton.dev
preserveUnknownFields: false
validation:
openAPIV3Schema:
type: object
# One can use x-kubernetes-preserve-unknown-fields: true
# at the root of the schema (and inside any properties, additionalProperties)
# to get the traditional CRD behaviour that nothing is pruned, despite
# setting spec.preserveUnknownProperties: false.
#
# See https://kubernetes.io/blog/2019/06/20/crd-structural-schema/
# See issue: https://github.com/knative/serving/issues/912
x-kubernetes-preserve-unknown-fields: true
versions:
- name: v1alpha1
served: true
storage: true
- name: v1beta1
served: true
storage: false
names:
kind: Task
plural: tasks
categories:
- tekton
- tekton-pipelines
scope: Namespaced
# Opt into the status subresource so metadata.generation
# starts to increment
subresources:
status: {}
conversion:
strategy: Webhook
webhookClientConfig:
service:
name: tekton-pipelines-webhook
namespace: tekton-pipelines
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
name: taskruns.tekton.dev
labels:
pipeline.tekton.dev/release: "devel"
version: "devel"
spec:
group: tekton.dev
preserveUnknownFields: false
validation:
openAPIV3Schema:
type: object
# One can use x-kubernetes-preserve-unknown-fields: true
# at the root of the schema (and inside any properties, additionalProperties)
# to get the traditional CRD behaviour that nothing is pruned, despite
# setting spec.preserveUnknownProperties: false.
#
# See https://kubernetes.io/blog/2019/06/20/crd-structural-schema/
# See issue: https://github.com/knative/serving/issues/912
x-kubernetes-preserve-unknown-fields: true
versions:
- name: v1alpha1
served: true
storage: true
- name: v1beta1
served: true
storage: false
names:
kind: TaskRun
plural: taskruns
categories:
- tekton
- tekton-pipelines
shortNames:
- tr
- trs
scope: Namespaced
additionalPrinterColumns:
- name: Succeeded
type: string
JSONPath: ".status.conditions[?(@.type==\"Succeeded\")].status"
- name: Reason
type: string
JSONPath: ".status.conditions[?(@.type==\"Succeeded\")].reason"
- name: StartTime
type: date
JSONPath: .status.startTime
- name: CompletionTime
type: date
JSONPath: .status.completionTime
# Opt into the status subresource so metadata.generation
# starts to increment
subresources:
status: {}
conversion:
strategy: Webhook
webhookClientConfig:
service:
name: tekton-pipelines-webhook
namespace: tekton-pipelines
---
# Copyright 2020 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: v1
kind: Secret
metadata:
name: webhook-certs
namespace: tekton-pipelines
labels:
pipeline.tekton.dev/release: devel
# The data is populated at install time.
---
apiVersion: admissionregistration.k8s.io/v1beta1
kind: ValidatingWebhookConfiguration
metadata:
name: validation.webhook.pipeline.tekton.dev
labels:
pipeline.tekton.dev/release: devel
webhooks:
- admissionReviewVersions:
- v1beta1
clientConfig:
service:
name: tekton-pipelines-webhook
namespace: tekton-pipelines
failurePolicy: Fail
sideEffects: None
name: validation.webhook.pipeline.tekton.dev
---
apiVersion: admissionregistration.k8s.io/v1beta1
kind: MutatingWebhookConfiguration
metadata:
name: webhook.pipeline.tekton.dev
labels:
pipeline.tekton.dev/release: devel
webhooks:
- admissionReviewVersions:
- v1beta1
clientConfig:
service:
name: tekton-pipelines-webhook
namespace: tekton-pipelines
failurePolicy: Fail
sideEffects: None
name: webhook.pipeline.tekton.dev
---
apiVersion: admissionregistration.k8s.io/v1beta1
kind: ValidatingWebhookConfiguration
metadata:
name: config.webhook.pipeline.tekton.dev
labels:
pipeline.tekton.dev/release: devel
webhooks:
- admissionReviewVersions:
- v1beta1
clientConfig:
service:
name: tekton-pipelines-webhook
namespace: tekton-pipelines
failurePolicy: Fail
sideEffects: None
name: config.webhook.pipeline.tekton.dev
namespaceSelector:
matchExpressions:
- key: pipeline.tekton.dev/release
operator: Exists
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
name: tekton-aggregate-edit
labels:
rbac.authorization.k8s.io/aggregate-to-edit: "true"
rbac.authorization.k8s.io/aggregate-to-admin: "true"
rules:
- apiGroups:
- tekton.dev
resources:
- tasks
- taskruns
- pipelines
- pipelineruns
- pipelineresources
- conditions
verbs:
- create
- delete
- deletecollection
- get
- list
- patch
- update
- watch
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
name: tekton-aggregate-view
labels:
rbac.authorization.k8s.io/aggregate-to-view: "true"
rules:
- apiGroups:
- tekton.dev
resources:
- tasks
- taskruns
- pipelines
- pipelineruns
- pipelineresources
- conditions
verbs:
- get
- list
- watch
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: v1
kind: ConfigMap
metadata:
name: config-artifact-bucket
namespace: tekton-pipelines
# data:
# # location of the gcs bucket to be used for artifact storage
# location: "gs://bucket-name"
# # name of the secret that will contain the credentials for the service account
# # with access to the bucket
# bucket.service.account.secret.name:
# # The key in the secret with the required service account json
# bucket.service.account.secret.key:
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: v1
kind: ConfigMap
metadata:
name: config-artifact-pvc
namespace: tekton-pipelines
# data:
# # size of the PVC volume
# size: 5Gi
#
# # storage class of the PVC volume
# storageClassName: storage-class-name
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: v1
kind: ConfigMap
metadata:
name: config-defaults
namespace: tekton-pipelines
data:
_example: |-
################################
# #
# EXAMPLE CONFIGURATION #
# #
################################
# This block is not actually functional configuration,
# but serves to illustrate the available configuration
# options and document them in a way that is accessible
# to users that `kubectl edit` this config map.
#
# These sample configuration options may be copied out of
# this example block and unindented to be in the data block
# to actually change the configuration.
# default-timeout-minutes contains the default number of
# minutes to use for TaskRun and PipelineRun, if none is specified.
default-timeout-minutes: "60" # 60 minutes
# default-service-account contains the default service account name
# to use for TaskRun and PipelineRun, if none is specified.
default-service-account: "default"
# default-managed-by-label-value contains the default value given to the
# "app.kubernetes.io/managed-by" label applied to all Pods created for
# TaskRuns. If a user's requested TaskRun specifies another value for this
# label, the user's request supercedes.
default-managed-by-label-value: "tekton-pipelines"
# default-pod-template contains the default pod template to use
# TaskRun and PipelineRun, if none is specified. If a pod template
# is specified, the default pod template is ignored.
# default-pod-template:
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: v1
kind: ConfigMap
metadata:
name: feature-flags
namespace: tekton-pipelines
data:
# Setting this flag to "true" will prevent Tekton overriding your
# Task container's $HOME environment variable.
#
# The default behaviour currently is for Tekton to override the
# $HOME environment variable but this will change in an upcoming
# release.
#
# See https://github.com/tektoncd/pipeline/issues/2013 for more
# info.
disable-home-env-overwrite: "false"
# Setting this flag to "true" will prevent Tekton overriding your
# Task container's working directory.
#
# The default behaviour currently is for Tekton to override the
# working directory if not set by the user but this will change
# in an upcoming release.
#
# See https://github.com/tektoncd/pipeline/issues/1836 for more
# info.
disable-working-directory-overwrite: "false"
---
# Copyright 2020 Tekton Authors LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: v1
kind: ConfigMap
metadata:
name: config-leader-election
namespace: tekton-pipelines
data:
# An inactive but valid configuration follows; see example.
resourceLock: "leases"
leaseDuration: "15s"
renewDeadline: "10s"
retryPeriod: "2s"
---
# Copyright 2019 Tekton Authors LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: v1
kind: ConfigMap
metadata:
name: config-logging
namespace: tekton-pipelines
data:
# Common configuration for all knative codebase
zap-logger-config: |
{
"level": "info",
"development": false,
"sampling": {
"initial": 100,
"thereafter": 100
},
"outputPaths": ["stdout"],
"errorOutputPaths": ["stderr"],
"encoding": "json",
"encoderConfig": {
"timeKey": "",
"levelKey": "level",
"nameKey": "logger",
"callerKey": "caller",
"messageKey": "msg",
"stacktraceKey": "stacktrace",
"lineEnding": "",
"levelEncoder": "",
"timeEncoder": "",
"durationEncoder": "",
"callerEncoder": ""
}
}
# Log level overrides
loglevel.controller: "info"
loglevel.webhook: "info"
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: v1
kind: ConfigMap
metadata:
name: config-observability
namespace: tekton-pipelines
data:
_example: |
################################
# #
# EXAMPLE CONFIGURATION #
# #
################################
# This block is not actually functional configuration,
# but serves to illustrate the available configuration
# options and document them in a way that is accessible
# to users that `kubectl edit` this config map.
#
# These sample configuration options may be copied out of
# this example block and unindented to be in the data block
# to actually change the configuration.
# metrics.backend-destination field specifies the system metrics destination.
# It supports either prometheus (the default) or stackdriver.
# Note: Using Stackdriver will incur additional charges.
metrics.backend-destination: prometheus
# metrics.stackdriver-project-id field specifies the Stackdriver project ID. This
# field is optional. When running on GCE, application default credentials will be
# used and metrics will be sent to the cluster's project if this field is
# not provided.
metrics.stackdriver-project-id: "<your stackdriver project id>"
# metrics.allow-stackdriver-custom-metrics indicates whether it is allowed
# to send metrics to Stackdriver using "global" resource type and custom
# metric type. Setting this flag to "true" could cause extra Stackdriver
# charge. If metrics.backend-destination is not Stackdriver, this is
# ignored.
metrics.allow-stackdriver-custom-metrics: "false"
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: apps/v1
kind: Deployment
metadata:
name: tekton-pipelines-controller
namespace: tekton-pipelines
labels:
app.kubernetes.io/name: tekton-pipelines
app.kubernetes.io/component: controller
pipeline.tekton.dev/release: "v0.12.0"
version: "v0.12.0"
spec:
replicas: 1
selector:
matchLabels:
app: tekton-pipelines-controller
template:
metadata:
annotations:
cluster-autoscaler.kubernetes.io/safe-to-evict: "false"
labels:
app: tekton-pipelines-controller
app.kubernetes.io/name: tekton-pipelines
app.kubernetes.io/component: controller
# tekton.dev/release value replaced with inputs.params.versionTag in pipeline/tekton/publish.yaml
pipeline.tekton.dev/release: "v0.12.0"
version: "v0.12.0"
spec:
serviceAccountName: tekton-pipelines-controller
containers:
- name: tekton-pipelines-controller
image: xianchao/tekton-controller:v0.12.0
args: [
# These images are built on-demand by `ko resolve` and are replaced
# by image references by digest.
"-kubeconfig-writer-image", "xianchao/tekton-kubeconfigwriter:v0.12.0",
"-creds-image", "xianchao/tekton-creds-init:v0.12.0",
"-git-image", "xianchao/tekton-git-init:v0.12.0",
"-entrypoint-image", "xianchao/tekton-entrypoint:v0.12.0",
"-imagedigest-exporter-image", "xianchao/tekton-imagedigestexporter:v0.12.0",
"-pr-image", "xianchao/tekton-pullrequest-init:v0.12.0",
"-build-gcs-fetcher-image", "xianchao/tekton-gcs-fetcher:v0.12.0",
# These images are pulled from Dockerhub, by digest, as of April 15, 2020.
"-nop-image", "xianchao/tianon:v1.0",
"-shell-image", "xianchao/busybox:v1.0",
"-gsutil-image", "google/cloud-sdk"]
volumeMounts:
- name: config-logging
mountPath: /etc/config-logging
env:
- name: SYSTEM_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
- # If you are changing these names, you will also need to update
# the controller's Role in 200-role.yaml to include the new
# values in the "configmaps" "get" rule.
name: CONFIG_LOGGING_NAME
value: config-logging
- name: CONFIG_OBSERVABILITY_NAME
value: config-observability
- name: CONFIG_ARTIFACT_BUCKET_NAME
value: config-artifact-bucket
- name: CONFIG_ARTIFACT_PVC_NAME
value: config-artifact-pvc
- name: CONFIG_FEATURE_FLAGS_NAME
value: feature-flags
- name: CONFIG_LEADERELECTION_NAME
value: config-leader-election
- name: METRICS_DOMAIN
value: tekton.dev/pipeline
volumes:
- name: config-logging
configMap:
name: config-logging
---
apiVersion: v1
kind: Service
metadata:
labels:
app: tekton-pipelines-controller
pipeline.tekton.dev/release: "v0.12.0"
version: "v0.12.0"
name: tekton-pipelines-controller
namespace: tekton-pipelines
spec:
ports:
- name: http-metrics
port: 9090
protocol: TCP
targetPort: 9090
selector:
app: tekton-pipelines-controller
---
# Copyright 2019 The Tekton Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: apps/v1
kind: Deployment
metadata:
# Note: the Deployment name must be the same as the Service name specified in
# config/400-webhook-service.yaml. If you change this name, you must also
# change the value of WEBHOOK_SERVICE_NAME below.
name: tekton-pipelines-webhook
namespace: tekton-pipelines
labels:
app.kubernetes.io/name: tekton-pipelines
app.kubernetes.io/component: webhook-controller
pipeline.tekton.dev/release: "v0.12.0"
version: "v0.12.0"
spec:
replicas: 1
selector:
matchLabels:
app: tekton-pipelines-webhook
role: webhook
template:
metadata:
annotations:
cluster-autoscaler.kubernetes.io/safe-to-evict: "false"
labels:
app: tekton-pipelines-webhook
role: webhook
app.kubernetes.io/name: tekton-pipelines
app.kubernetes.io/component: webhook-controller
pipeline.tekton.dev/release: "v0.12.0"
version: "v0.12.0"
spec:
serviceAccountName: tekton-pipelines-webhook
containers:
- name: webhook
# This is the Go import path for the binary that is containerized
# and substituted here.
image: xianchao/tekton-webhook:v0.12.0
env:
- name: SYSTEM_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
- # If you are changing these names, you will also need to update
# the webhook's Role in 200-role.yaml to include the new
# values in the "configmaps" "get" rule.
name: CONFIG_LOGGING_NAME
value: config-logging
- name: CONFIG_OBSERVABILITY_NAME
value: config-observability
- name: CONFIG_LEADERELECTION_NAME
value: config-leader-election
- name: WEBHOOK_SERVICE_NAME
value: tekton-pipelines-webhook
- name: WEBHOOK_SECRET_NAME
value: webhook-certs
- name: METRICS_DOMAIN
value: tekton.dev/pipeline
securityContext:
allowPrivilegeEscalation: false
ports:
- name: metrics
containerPort: 9090
- name: profiling
containerPort: 8008
- name: https-webhook
containerPort: 8443
---
apiVersion: v1
kind: Service
metadata:
labels:
app: tekton-pipelines-webhook
role: webhook
pipeline.tekton.dev/release: v0.12.0
version: "v0.12.0"
name: tekton-pipelines-webhook
namespace: tekton-pipelines
spec:
ports:
- # Define metrics and profiling for them to be accessible within service meshes.
name: http-metrics
port: 9090
targetPort: 9090
- name: http-profiling
port: 8008
targetPort: 8008
- name: https-webhook
port: 443
targetPort: 8443
selector:
app: tekton-pipelines-webhook
role: webhook
---验证资源创建
kubectl get pods -n tekton-pipelines
kubectl get crd
kubectl api-versions测试Tekton构建CICD流水线
- 我们测试一个简单的golang程序。应用程序代码，测试及dockerfile文件可在如下地址获取：tekton-demo
创建task任务
tee task-test.yaml <<'EOF'
apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
name: test
spec:
resources:
#resources定义了我们的任务中定义的步骤中需要输入的内容，这里我们的步骤需要 Clone 一个 Git 仓库作为 go test 命令的输入。
#Tekton 内置了一种 git 资源类型，它会自动将代码仓库 Clone 到 /workspace/$input_name 目录中，由于我们这里输入被命名成 repo，所以代码会被 Clone 到 /workspace/repo 目录下面。然后下面的 steps 就是来定义执行运行测试命令的步骤，这里我们直接在代码的根目录中运行 go test 命令即可，需要注意的是命令和参数需要分别定义。
inputs:
- name: repo
type: git
steps:
- name: run-test
image: golang:1.14-alpine
imagePullPolicy: IfNotPresent
workingDir: /workspace/repo
command: ["go"]
args: ["test"]
EOF
kubectl apply -f task-test.yaml
kubectl get Task创建pipelineresource
- 通过上面步骤定义了一个 Task 任务，但是该任务并不会立即执行。必须创建一个 TaskRun 引用它并提供所有必需输入的数据才行。这里我们就需要将 git 代码库作为输入，必须先创建一个 PipelineResource 对象来定义输入信息：
tee pipelineresource.yaml <<'EOF'
apiVersion: tekton.dev/v1alpha1
kind: PipelineResource
metadata:
name: xianchao-tekton-example
spec:
type: git
params:
- name: url
value: https://github.com/luckylucky421/tekton-demo
- name: revision
value: master
EOF
kubectl apply -f pipelineresource.yaml
kubectl get PipelineResource创建taskrun
tee taskrun.yaml <<'EOF'
apiVersion: tekton.dev/v1beta1
kind: TaskRun
metadata:
name: testrun
spec:
taskRef:
name: test
resources:
inputs:
- name: repo
resourceRef:
name: xianchao-tekton-example
#通过taskRef引用上面定义的Task和git仓库作为输入，resourceRef也是引用上面定义的PipelineResource资源对象。
EOF
kubectl apply -f taskrun.yaml
kubectl get taskrun
kubectl get pods #可以看到有一个taskrun的pod在运行，任务执行完成后，pod就变成completed状态了
#可以通过kubectl describe命令来查看任务运行的过程，通过kubectl logs查看任务执行结果
kubectl describe po testrun-pod-x9rkn
kubectl logs testrun-pod-x9rkn --all-containers