HarnessKustomizePluginScript-GIT-HTTPS-AUTH

#!/bin/sh
#Variables section

GIT_USER="joebloggs"
GIT_EMAIL="joebloggs@hotmail.com"

#note HTTPS url requires URL encoding for special characters 
GIT_PASSWORD_URLENCODED=${secrets.getValue("git_password_url_encoded")}

GIT_BRANCH="main"

#reference to harness image artifact variable
IMAGE=${artifact.metadata.image}

#repo URL suffix 
REPOSITORY_NAME=HarnessKustomizePlugin

#generic repo path
REPO_PATH=https://github.com/gregkroon/HarnessKustomizePlugin

#build full auth string with URL encoded password for remote repo add and git push 
REPO_AUTH_STRING=https://$GIT_USER:$GIT_PASSWORD_URLENCODED@github.com/$GIT_USER/$REPOSITORY_NAME.git 

if [[ ! -d "/root/K_PLUGINS/${app.name}/${service.name}/${env.name}/kustomize/plugin/version1/harnesskustomizeplugin" ]];then
mkdir -p /root/K_PLUGINS/${app.name}/${service.name}/${env.name}/kustomize/plugin/version1/harnesskustomizeplugin
fi

#cleanup old script 
rm -f /root/K_PLUGINS/${app.name}/${service.name}/${env.name}/kustomize/plugin/version1/harnesskustomizeplugin/HarnessKustomizePlugin

#generate plugin script
cat <<EOF >  /root/K_PLUGINS/${app.name}/${service.name}/${env.name}/kustomize/plugin/version1/harnesskustomizeplugin/HarnessKustomizePlugin
#!/bin/sh


#Setup GIT config 
git config --global user.email $GIT_EMAIL
git config --global user.name $GIT_USER

# capture standad input to file for yq processing 
cat -> input.yaml

#Process input file and transform for plugin stdout , this uses a yq select so as to change only the deployment.yaml not the service.yaml

yq eval '(select(.spec.template.spec.containers[].image) |.spec.template.spec.containers[].image = "$IMAGE")'  input.yaml 


# create update for commit to GIT

yq eval '(select(.kind == "Deployment") | del(.metadata.annotations."kustomize.config.k8s.io/id") | .spec.template.spec.containers[].image = "$IMAGE"' input.yaml > deployment.yaml.new

rm deployment.yaml
mv deployment.yaml.new deployment.yaml

################################## GIT OPTIONAL YOU CAN REMOVE THIS BLOCK IF NOT USING GIT ##################################
git pull $REPO_PATH $GIT_BRANCH > /dev/null 2>&1

git add -f deployment.yaml > /dev/null 2>&1
git commit -m "Harness Automated commit"  > /dev/null 2>&1
git remote set-url origin $REPO_AUTH_STRING > /dev/null 2>&1
git push origin HEAD:$GIT_BRANCH > /dev/null 2>&1
################################## GIT OPTIONAL YOU CAN REMOVE THIS BLOCK IF NOT USING GIT ##################################

EOF

#Set plugin scipt permissions 
chmod +x /root/K_PLUGINS/${app.name}/${service.name}/${env.name}/kustomize/plugin/version1/harnesskustomizeplugin/HarnessKustomizePlugin