terraform

terraform_amd64.sh

function get_remote_digest() {
    local repo="${1}"
    local tag="${2}"
    local token

     token=$(curl -s "https://auth.docker.io/token?service=registry.docker.io&scope=repository:${repo}:pull" | jq -r '.token')
     digest="$(curl -I -s -H "Accept: application/vnd.docker.distribution.manifest.v2+json" -H  "Authorization: Bearer $token" "https://registry-1.docker.io/v2/${repo}/manifests/${tag}" | sed 's/: /=/g' | grep -i docker-content-digest | cut -d= -f2 | tr -d '\r')"
     echo "${digest}"
}

function get_digest() {
    local repo="${1}"
    digest=$(docker inspect --format='{{index .RepoDigests 0}}' "${repo}" | cut -d@ -f2)
    echo "${digest}"
}

function terraform() {
  local ARGS=() ENVIRONMENT=()
  local EXTRA ENVS KEY VAL CHDIR EXTRA_ARGS LOCAL_ARGS=("$@")
  if [[ ! "$PWD" =~ ${HOME} ]]; then
    echo -e "\033[0;31mThis function can be used only from a folder that is part of the user home dir"
    [[ $(type "$(where terraform | tail -1)") =~ "bash function" ]] && echo -e "install terraform and use it\033[0m" || echo -e "Use $(where terraform | tail -1) insted of terraform\033[0m"
    return 1
  fi
  ENVS=( $(env | grep TF_) )
  for ENV in "${ENVS[@]}"; do
    KEY=$(cut -d= -f1 <<<"${ENV}")
    VAL=$(cut -d= -f2 <<<"${ENV}")
    if [[ $KEY =~ (PATH|FILE) ]]; then
      mkdir -p "${VAL%/*}"
      [[ $VAL =~ ${HOME} ]] && VAL="${VAL//$HOME//workspace}" || VAL="${PWD/#$HOME\//}/${VAL}"
    fi
    ENVIRONMENT+=("-e ${KEY}=${VAL}")
  done
  if [[ "${LOCAL_ARGS[@]}" =~ -chdir ]]; then
    PDIR=$(echo "${LOCAL_ARGS[@]}" | grep -Eo 'chdir=.*' | cut -d' ' -f1 | cut -d = -f2)
    [[ "${PDIR}" =~ $HOME ]] && CHDIR="${PDIR//$HOME//workspace}" || CHDIR="${PDIR/#$HOME\//}/${PDIR}"
    ARGS+=("-chdir=${CHDIR}")
  else
    [[ "${PWD}" != "${HOME}" ]] && ARGS+=("-chdir=${PWD/#$HOME\//}")
  fi
  if [[ "${LOCAL_ARGS[@]}" =~ console ]]; then
    EXTRA='-it'
  elif [[ "${LOCAL_ARGS[@]}" =~ autocomplete ]]; then
    command terraform "${LOCAL_ARGS[@]}"
    return
  else 
     EXTRA='-i'
  fi
  EXTRA_ARGS=(${LOCAL_ARGS[@]/"-chdir=${PDIR}"})
  [[ "$(get_digest  "hashicorp/terraform")" != "$(get_remote_digest  "hashicorp/terraform" "latest")" ]] && docker pull hashicorp/terraform:latest
  command docker run --platform linux/amd64 --rm -u "$(id -u)" ${EXTRA} \
    -e "HOME=/workspace" \
    $(echo ${ENVIRONMENT[*]}) \
    -v "${HOME}:/workspace" \
    -w /workspace \
    hashicorp/terraform \
    $(echo ${ARGS[*]}) $(echo ${EXTRA_ARGS[*]})
}