container-server/tasks/utils.yml

version: "3"

tasks:
  validate:
    desc: Check .env for missing variables
    cmds:
      - |
        {{with .MISSING_VARS | trim}}
          echo Warning: missing vars in .env:
          {{range (. | splitLines)}}
            echo "  {{. | trimSuffix "="}}"
          {{end}}
        {{end}}
    vars:
      MISSING_VARS:
        sh: tasks/validate.sh

  template:
    desc: Fill in variables in *.template.* files
    deps: [validate]
    cmds:
      - |
        find services -name "*.template.*" | while read -r f
        do 
            echo "templating $f"
            envsubst < $f > ${f/.template/}
        done
    sources:
      - services/**/*.template.*
      - .env