我正在尝试为我的应用程序构建一个构建管道，并在使用卷的步骤之间共享一个特定的文件夹。
问题是因为在我的第一步(单元测试(中，我必须在requirements.txt上安装所有的库，才能运行我的单元测试。在那之后，我必须在另一步中构建运行Dockerfile的应用程序。我不想再次重新安装所有的需求，所以，我想复制已经安装的需求，并将它们粘贴到docker构建步骤中。我能做到吗？我遵循这条线索，试图复制到我的现实中，但我仍然有问题。
将文件从Google Cloud Container Builder传递到Docker构建任务
这是我所做的一个示例：
我的cloudbuild.yaml:
- id: unit-tests
name: python:3-alpine
entrypoint: sh
dir: my-dir
args:
- -c
- |
apk add --virtual build_dependencies build-base
apk add --no-cache libstdc++
pip install --no-cache-dir -r requirements.txt
apk del build_dependencies
python -m unittest discover --verbose
cp -Rv /usr/local/lib/python3.8/site-packages/* /requirements
volumes:
- name: 'requirements'
path: /requirements
- id: docker-build
name: gcr.io/cloud-builders/docker
dir: my-dir
args:
- build
- --tag=gcr.io/${PROJECT_ID}/eta:test
- '.'
volumes:
- name: 'requirements'
path: /requirements
waitFor: ['unit-tests']
images:
- 'gcr.io/$PROJECT_ID/eta:test'
timeout: 3600s
这是我的Dockerfile:
from python:3-alpine
RUN set -eux;
apk add --virtual build_dependencies build-base;
apk add --no-cache libstdc++;
apk del build_dependencies;
COPY /requirements/* /usr/local/lib/python3.8/site-packages/
COPY . /app
RUN ["chmod", "+x", "/app/entry.sh"]
WORKDIR /app
ENTRYPOINT [ "/app/entry.sh" ]
我在dockerfile中找不到/requestions文件夹，这是错误消息：
Step #1 - "docker-build": Step 3/7 : COPY /requirements/* /usr/local/lib/python3.8/site-packages/
Step #1 - "docker-build": COPY failed: no source files were specified
Finished Step #1 - "docker-build"
ERROR
ERROR: build step 1 "gcr.io/cloud-builders/docker" failed: step exited with non-zero status: 1
我不确定我的做法是否正确。
云构建(VM(在各个步骤中保持/workspace，因此您可以创建例如/workspace/requirements并在后续步骤中使用requirements。
PROJECT=[[YOUR-PROJECT]]
BILLING=[[YOUR-BILLING]]
gcloud projects create ${PROJECT}
gcloud beta billing projects link ${PROJECT}
--billing-account=${BILLING}
gcloud services enable cloudbuild.googleapis.com
--project=${PROJECT}
然后：
steps:
- id: also
name: busybox
entrypoint: sh
dir: x
args:
- -c
- |
mkdir -p /workspace/requirements
echo "Hello Freddie" > /workspace/requirements/freddie.txt
- id: after
name: gcr.io/cloud-builders/docker
args:
- build
- --tag=gcr.io/${PROJECT_ID}/test
- .
images:
- gcr.io/${PROJECT_ID}/test
和Dockerfile:
FROM busybox
WORKDIR /test
COPY /requirements/* .
RUN ls -la
ENTRYPOINT ["more","/test/freddie.txt"]
和：
gcloud builds submit .
--config=./cloudbuild.yaml
--project=${PROJECT}
收益率：
BUILD
Starting Step #0 - "also"
Step #0 - "also": Pulling image: busybox
Step #0 - "also": Using default tag: latest
Step #0 - "also": latest: Pulling from library/busybox
Step #0 - "also": Digest: sha256:2ca5e69e
Step #0 - "also": Status: Downloaded newer image for busybox:latest
Step #0 - "also": docker.io/library/busybox:latest
Finished Step #0 - "also"
Starting Step #1 - "after"
Step #1 - "after": Already have image (with digest): gcr.io/cloud-builders/docker
Step #1 - "after": Sending build context to Docker daemon 7.68kB
Step #1 - "after": Step 1/5 : FROM busybox
Step #1 - "after": ---> 6858809bf669
Step #1 - "after": Step 2/5 : WORKDIR /test
Step #1 - "after": ---> Running in 7e075adce9eb
Step #1 - "after": Removing intermediate container 7e075adce9eb
Step #1 - "after": ---> 78f7b2faec16
Step #1 - "after": Step 3/5 : COPY /requirements/* .
Step #1 - "after": ---> 1ec6a35c1deb
Step #1 - "after": Step 4/5 : RUN ls -la
Step #1 - "after": ---> Running in 943ddad6434c
Step #1 - "after": total 12
Step #1 - "after": .
Step #1 - "after": ..
Step #1 - "after": freddie.txt
Step #1 - "after": Removing intermediate container 943ddad6434c
Step #1 - "after": ---> 634072b8aec4
Step #1 - "after": Step 5/5 : ENTRYPOINT ["more","/test/freddie.txt"]
Step #1 - "after": ---> Running in 13c43b5ca924
Step #1 - "after": Removing intermediate container 13c43b5ca924
Step #1 - "after": ---> f0ebfe1e8e33
Step #1 - "after": Successfully built f0ebfe1e8e33
Step #1 - "after": Successfully tagged gcr.io/.../test:latest
Finished Step #1 - "after"
PUSH
使用volumes的问题是，这些不会出现在docker构建的上下文中。因此，如果您更喜欢使用卷，则需要将卷的内容复制到/workspace中。
然后，当您运行gcr.io/cloud-builders/docker步骤时，/workspace将作为根安装，因此您可以作为/requirements:访问/workspace/requirements
然后：
steps:
- id: before
name: busybox
entrypoint: sh
dir: x
args:
- -c
- |
echo "Hello Freddie" > /requirements/freddie.txt
volumes:
- name: requirements
path: /requirements
- id: during
name: busybox
entrypoint: sh
dir: x
args:
- -c
- |
more /requirements/freddie.txt
volumes:
- name: requirements
path: /requirements
- id: fix
name: busybox
entrypoint: sh
args:
- -c
- |
ls -la /workspace
ls -la /requirements
mkdir -p /workspace/requirements
cp -r /requirements /workspace/requirements
ls -la /workspace/requirements
volumes:
- name: requirements
path: /requirements
- id: after
name: gcr.io/cloud-builders/docker
args:
- build
- --tag=gcr.io/${PROJECT_ID}/test
- .
images:
- gcr.io/${PROJECT_ID}/test
收益率：
BUILD
Starting Step #0 - "before"
Step #0 - "before": Pulling image: busybox
Step #0 - "before": Using default tag: latest
Step #0 - "before": latest: Pulling from library/busybox
Step #0 - "before": Digest: sha256:2ca5e69e
Step #0 - "before": Status: Downloaded newer image for busybox:latest
Step #0 - "before": docker.io/library/busybox:latest
Finished Step #0 - "before"
Starting Step #1 - "during"
Step #1 - "during": Already have image: busybox
Step #1 - "during": Hello Freddie
Finished Step #1 - "during"
Starting Step #2 - "fix"
Step #2 - "fix": Already have image: busybox
Step #2 - "fix": total 24
Step #2 - "fix": .
Step #2 - "fix": ..
Step #2 - "fix": Dockerfile
Step #2 - "fix": cloudbuild.yaml
Step #2 - "fix": requirements
Finished Step #2 - "fix"
Starting Step #3 - "after"
Step #3 - "after": Already have image (with digest): gcr.io/cloud-builders/docker
Step #3 - "after": Sending build context to Docker daemon 8.192kB
Step #3 - "after": Step 1/5 : FROM busybox
Step #3 - "after": ---> 6858809bf669
Step #3 - "after": Step 2/5 : WORKDIR /test
Step #3 - "after": ---> Running in 236aa78f2229
Step #3 - "after": Removing intermediate container 236aa78f2229
Step #3 - "after": ---> cf05164e8175
Step #3 - "after": Step 3/5 : COPY /requirements/* .
Step #3 - "after": ---> f5dee710b4d7
Step #3 - "after": Step 4/5 : RUN ls -la
Step #3 - "after": ---> Running in 8a30309a1536
Step #3 - "after": total 12
Step #3 - "after": .
Step #3 - "after": ..
Step #3 - "after": freddie.txt
Step #3 - "after": Removing intermediate container 8a30309a1536
Step #3 - "after": ---> 20e2e99c3818
Step #3 - "after": Step 5/5 : ENTRYPOINT ["more","/test/freddie.txt"]
Step #3 - "after": ---> Running in cc6a57aaa103
Step #3 - "after": Removing intermediate container cc6a57aaa103
Step #3 - "after": ---> 0a50096e471c
Step #3 - "after": Successfully built 0a50096e471c
Step #3 - "after": Successfully tagged gcr.io/.../test:latest
Finished Step #3 - "after"
PUSH
Pushing gcr.io/.../test
...
DONE