variables.env
file for future stages to use.chatgpt_analysis generates an in-depth explanation of the
pipeline stages and the update_dockerhub_readme updates the
DockerHub repository’s README file.The purpose of the Hadolint job is to ensure that Dockerfiles adhere to best coding practices by using Hadolint to lint the Dockerfile in the repository. It helps identify any problematic patterns that could potentially cause issues.
hadolint:
image: hadolint/hadolint:latest-debian
stage: Quality
before_script:
- cd $CI_PROJECT_DIR
script:
- hadolint --ignore DL3008 Dockerfile The before_script navigates to the directory containing
the project files ($CI_PROJECT_DIR). This is followed by a
script section that runs the Hadolint utility on the
Dockerfile. The --ignore DL3008 ignores specific warnings
about a particular rule (DL3008, which relates to not pinning package
versions in the apt get install command).
The purpose of ‘getsquid_vars’ is to fetch the latest version of
Squid from its official GitHub release page and then write it to an
environment variable file (variables.env).
getsquid_vars:
stage: Get-version
image:
name: $CONTAINER_CLIENT_IMAGE
artifacts:
expire_in: 1 hour
paths:
- variables.env
script:
- apt update && apt install git curl ca-certificates -y --no-upgrade --no-install-recommends --no-install-suggests
- export SQUID_VERSION=$(curl -LsXGET https://github.com/squid-cache/squid/releases/latest | grep -m 1 "Release" | cut -d " " -f4 |tr -d 'v')
- echo "SQUID_VERSION=$SQUID_VERSION" > variables.env
- echo $SQUID_VERSION
- sed -i "s/{{SQUID_VERSION}}/$SQUID_VERSION/g" README_template.md
- sed -i "s/{{DATE}}/$(date +%Y%m%d)/g" README_template.md
- cp README_template.md README.md
- git config user.email "fredbcode"
- git config user.name "fredbcode"
- git add README.md
- git commit -m "README Auto update [skip ci]" || true
- git push https://$GITLAB_TOKEN@gitlab.com/fredbcode-images/squid.git HEAD:master || trueThe script starts by installing the necessary packages
(git, curl and ca-certificates).
Then, it uses curl to fetch the latest Squid version from
its official GitHub releases page. It stores this version in
SQUID_VERSION environment variable that is written into
variables.env file. This file is used as an artifact that
is passed onto subsequent jobs.
The script also updates the README with the latest Squid version and
date, commits and pushes it to the git repository. Git commands are used
to set user name and email for the commit operation, then adds the
modified README file, commits it with the message “README Auto update”,
and finally pushes this commit to the repository. The
|| true part after
git commit -m "README Auto update [skip ci]" and `git push
https://$GITLAB_TOKEN@gitlab.com/fredbcode-images’ provides further
robustness, ensuring that the CI/CD pipeline doesn’t fail if these
commands encounter errors.
It’s used to build a Docker image based on the Squid version
retrieved in getsquid_vars and then push this image to
Docker Hub.
docker-hub-build:
stage: Docker-hub-build
image: docker:dind
needs:
- getsquid_vars
artifacts:
expire_in: 2 hours
paths:
- $CI_PROJECT_DIR
timeout: 3 hours
before_script:
- docker login -u "$DOCKER_HUB_USER" -p "$DOCKER_HUB_TOKEN" $DOCKER_HUB_REGISTRY
script:
- source variables.env
- docker build --build-arg SQUID_VERSION=$SQUID_VERSION --pull -t $CONTAINER_BUILD_NOPROD_NAME_AMD64 .
- docker push $CONTAINER_BUILD_NOPROD_NAME_AMD64It starts with a needs directive instructing GitLab that
this job requires the getsquid_vars job to be finished
before it can start. In the before_script section it logs
into Docker Hub using the $DOCKER_HUB_USER and
$DOCKER_HUB_TOKEN environment variables.
The script section does the actual building and pushing
of the Docker image. It sources the variables.env file to
include the SQUID_VERSION environment variable, and then
uses docker build command to build the Docker image using
that version. It tags (-t) the image with the name stored
in $CONTAINER_BUILD_NOPROD_NAME_AMD64. After a successful
build, Docker image is pushed to Docker Hub.
It validates the correct functioning of the built Docker image. For this, it sets up a Squid proxy and sends a curl command using the setup proxy.
docker-hub-test:
stage: Docker-hub-test
extends: .services-amd64
before_script:
- apt update && apt install -y curl --no-upgrade --no-install-recommends --no-install-suggests
script:
- export https_proxy=http://$CONTAINER_TEST_NAME:3128 && curl -k https://www.google.fr
variables:
HOSTNAME: squidpipeline
needs: ["docker-hub-build"]The before_script section updates the package index
files and installs the curl tool. The script section
exports the https_proxy environment variable to point to
the Squid proxy running as a Docker service and then sends a
curl command to google.fr using this proxy. If it’s a
success, it indicates that the Docker image is functioning as
expected.
This job handles the tagging and pushing of the Docker image to Docker Hub. This is the final step that results in a new Docker image version being available in Docker Hub.
push-docker-hub:
stage: Docker-hub-pushtag
image: docker:dind
needs:
- docker-hub-test
- getsquid_vars
before_script:
- docker login -u "$DOCKER_HUB_USER" -p "$DOCKER_HUB_TOKEN" $DOCKER_HUB_REGISTRY
script:
- source variables.env
- docker pull $CONTAINER_BUILD_NOPROD_NAME_AMD64
- docker tag $CONTAINER_BUILD_NOPROD_NAME_AMD64 $HUB_REGISTRY_IMAGE:$SQUID_VERSION-amd64
- docker push $HUB_REGISTRY_IMAGE:$SQUID_VERSION-amd64
- docker tag $CONTAINER_BUILD_NOPROD_NAME_AMD64 $HUB_REGISTRY_IMAGE:latest-amd64
- docker push $HUB_REGISTRY_IMAGE:latest-amd64
- docker tag $CONTAINER_BUILD_NOPROD_NAME_AMD64 $HUB_REGISTRY_IMAGE:latest
- docker push $HUB_REGISTRY_IMAGE:latest
variables:
GIT_STRATEGY: none
only:
- masterIt requires the outputs from both the docker-hub-test
and getsquid_vars jobs, which it specifies with the
needs directive. The before_script section
includes a Docker login command to authenticate the Docker CLI with
Docker Hub. The script section pulls the Docker image, tags
it with different tags (including the Squid version and
latest-amd64), and then pushes it to Docker Hub.
This job creates a detailed ChatGPT Analysis of the project, it does
this by running a Curl command to make a POST request to the OpenAI’s
GPT-3 API. The request passes a JSON payload using the -d
flag. The payload contains the project and pipeline details, the
formatting requirements for the request, and the conversation messages
required by the API.
chatgpt_analysis:
stage: Docs
image:
name: $CONTAINER_CLIENT_IMAGE
artifacts:
expire_in: 1 month
paths:
- $CI_PROJECT_DIR/chatgpt_analysis*
needs:
- getsquid_vars
- docker-hub-test
- docker-hub-test-arm
before_script:
- apt update && apt install curl git jq ca-certificates pandoc openssh-client -y --no-upgrade --no-install-recommends --no-install-suggests
- source variables.env
- SQUID_VERSION=squid-$SQUID_VERSION
script:
- JOBS_CONTENT=$(cat .gitlab-ci.yml gitlabci/*)
- LAST_COMMIT=$(git log -1 --pretty=format:"%h %s%n%b")
- CONTENT="Please provide an in-depth explanation of the following GitLab CI/CD jobs with the following details, follow the order of jobs in the 'stages' section of the .gitlab-ci.yml file. Use Markdown format with headings for each job, include code blocks for commands or scripts, and bullet points for additional clarity. Make sure the response is well-structured, with line breaks separating each section and explanations for each command, making sure to format your response with clear sections and appropriate line breaks:\ 1) At first add a line with \"Squid $SQUID_VERSION ChatGPT Analysis\" and Job List with Brief Description:- List all jobs in the pipeline in the same order as defined in the 'stages' section of the .gitlab-ci.yml file. Provide a brief description of each job, summarizing its purpose and what it does in the pipeline. 2) Purpose of each job-Explain the specific purpose and objective of each job in the pipeline with a step-by-step breakdown-Provide a very detailed explanation of each command or action used in the job. For example, explain the purpose of any shell commands, scripts, or Docker commands used, and how they interact with the pipeline. 3) Parameters, environment variables, and file references-Describe any parameters, environment variables, or files referenced in the job, Follow the order of jobs in the 'stages' section of the .gitlab-ci.yml file (e.g., paths to files, configuration files, environment variables, etc.). Explain how these are used by the job and how they influence the pipeline execution. 4) Dependencies between jobs or stages-Explain how jobs are dependent on each other. If jobs are linked through dependencies or triggers, provide an explanation of how these dependencies affect job execution. 5) Expected outcomes or artifacts-Explain the output of the job (e.g., artifacts, build results, logs, test reports) and how they are used or passed to subsequent jobs in the pipeline. Include any artifacts or logs that should be stored or passed to the next job. 6) Include a detailed explanation of the latest commit, including its purpose and impact on the pipeline for context:$LAST_COMMIT Jobs content:$JOBS_CONTENT. at the end of the text add a line with \"Project:https://gitlab.com/fredbcode-images/squid Pipeline:https://gitlab.com/fredbcode-images/squid/-/pipelines/1709904803 Docker images:https://hub.docker.com/r/fredbcode\""
- JSON_CONTENT=$(jq -n --arg model "gpt-4" --arg content "$CONTENT" '{model:$model, messages:[{role:"user", content:$content}] }')
- RESPONSE=$(curl -X POST https://api.openai.com/v1/chat/completions -H "Authorization:Bearer $CHATGPT_API_KEY" -H "Content-Type:application/json" -d "$JSON_CONTENT")
- ANSWER=$(echo $RESPONSE | jq 'del(.choices[0].message.content)')
- RESPONSE=$(echo $RESPONSE | jq -r '.choices[0].message.content')
- echo "$ANSWER"
- echo -e "$RESPONSE" > chatgpt_analysis_$(date +%Y%m%d).md
- mkdir -p ~/.ssh
- eval $(ssh-agent -s)
- '[[ -f /.dockerenv ]] && echo -e "Host *
StrictHostKeyChecking no
" > ~/.ssh/config'
- ssh-add <(echo "$SSH_NOSTROMO_KEY")
- pandoc -s --from=markdown+smart --to=html --metadata=encoding=UTF-8 -o chatgpt_analysis_$(date +%Y%m%d).html chatgpt_analysis_$(date +%Y%m%d).md
- scp -P 822 -r chatgpt_analysis*.html e2git@e2guardian.numsys.eu:/datas/e2/html/squid-ci/
- echo "!!! See Artifact for explanations or https://e2guardian.numsys.eu !!!"
only:
- masterThe before_script section installs the necessary
packages (curl, git, jq,
ca-certificates, pandoc,
openssh-client), loads the environment variables from the
variables.env file sourced and prepares the
SQUID_VERSION variable for the script section.
The script section reads the job content and the last
commit message and prepares the content to be sent to the GPT-3 model
for generating the analysis. It then makes a POST request to the
OpenAI’s GPT-3 API, and retrieves the response, which is the analysis
text from GPT-3. The response is stored in a markdown file and also
converted to HTML. Finally, the html file is transferred to a remote
server using scp command.
This job keeps the DockerHub repository’s README file up to date with the repository’s README.md file. It fetches the content of the README.md file, and sends a PATCH request to update the full description of the repository on DockerHub.
update_dockerhub_readme:
image:
name: $CONTAINER_CLIENT_IMAGE
stage: Docs
artifacts:
needs:
- getsquid_vars
before_script:
- apt update && apt install -y curl jq ca-certificates --no-upgrade --no-install-recommends --no-install-suggests
script:
- README_CONTENT=$(cat README.md)
- PAYLOAD=$(jq -n --arg desc "$README_CONTENT" '{"full_description":$desc}')
- echo "Payload JSON:$PAYLOAD"
- TOKEN=$(curl -v -s -X POST -H "Content-Type:application/json" -d '{"username":"'"$DOCKER_HUB_USER"'","password":"'"$DOCKER_HUB_PASSWORD"'"}' https://hub.docker.com/v2/users/login/ | jq -r .token)
- curl -X PATCH -H "Authorization:JWT $TOKEN" -H "Content-Type:application/json" -d "$PAYLOAD" https://hub.docker.com/v2/repositories/$HUB_REGISTRY_IMAGE
only:
- masterThe before_script step installs the necessary packages
(curl, jq, ca-certificates). The
script section reads the contents of the README.md file and
prepares a JSON payload to be sent to the DockerHub API. It gets an
authorization token from DockerHub using a POST request, and updates the
repository’s full description with a PATCH request.
The .gitlab-ci.yml and its included files reference
numerous parameters, environment variables. Some of these are:
GIT_CLONE_PATH, CONTAINER_CLIENT_IMAGE,
DOCKER_HUB_USER,
DOCKER_HUB_TOKEN,SSH_NOSTROMO_KEY,CHAT_GPT_API_KEY,HUB_REGISTRY_IMAGE,CONTAINER_TEST_NAME:
These are environment variables that are defined in the
.gitlab-ci.yml file, or are set in the GitLab project’s
CI/CD settings and are available during the pipeline execution.Dockerfile, variables.env,
README_template.md, and README.md.For example, in docker-hub-build, it builds the Docker
image based on the contents of Dockerfile. The
getsquid_vars writes the Squid version to a
variables.env file that’s read in subsequent jobs like
docker-hub-build and docker-hub-test. The
README_template.md file used by getsquid_vars
to update the README.md with the latest Squid version and date.
Several jobs depend on each other and are interlinked through GitLab
CI’s needs and extends features.
docker-hub-build needs getsquid_vars
because it uses the SQUID_VERSION environment variable that
getsquid_vars writes to a variables.env
file.docker-hub-test needs docker-hub-build as
it tests the Docker image built in this job. It extends
.services-amd64 to use the services network.push-docker-hub needs docker-hub-test
because it should only push a Docker image to Docker Hub that has been
successfully built and tested.chatgpt_analysis and
update_dockerhub_readme both need
getsquid_vars, docker-hub-test,
docker-hub-test-arm because they use the
SQUID_VERSION environment variable and ensure that the
Docker image has passed the tests before test analysis and readme
update.Several jobs produce and pass artifacts to others.
getsquid_vars: Produces the variables.env
artifact, which contains the current Squid version. The artifact is
consumed by docker-hub-build, docker-hub-test,
docker-hub-build-arm, docker-hub-test-arm,
push-docker-hub and push-docker-hub-arm
jobs.chatgpt_analysis: Produces an artifact
chatgpt_analysis_$(date +%Y%m%d).md that contains the
generated analysis written in markdown.push-docker-hub and push-docker-hub-arm:
These jobs don’t have explicit artifacts but the Docker images they push
to Docker Hub are in a sense artifacts that can be used for deployments
or further testing.The latest commit with ID 1661814 and the message
“README Auto update [skip ci]” was made by the
getsquid_vars job. This job updates the
README.md with the latest version of Squid and the date,
and then commits this updated README.md to the repository.
The [skip ci] in the commit message is utilized to prevent
the commit from triggering another pipeline run