fly-pipeline

#!/bin/bash

set -euo pipefail

BASEDIR="$(cd "$(dirname "$0")" && pwd)"

GREEN='\033[0;32m'
NC='\033[0m'

GetSystemName() {
  case "$(uname)" in
    Darwin)
      echo "darwin"
      ;;

    Linux)
      # shellcheck disable=SC1091
      source /etc/os-release
      echo "${ID_LIKE:-$ID}"
      ;;

    *)
      echo "unknown"
      ;;
  esac
}

CheckPreReqs() {
  for TOOL in jq spruce fly lpass; do
    if ! hash "${TOOL}" 2>/dev/null; then
      echo -e "Required prerequisite \\033[1m${TOOL}\\033[0m is not installed. Unable to proceed.\\n"

      case "$(GetSystemName)" in
        darwin)
          cat <<'EOF'
Install suggestions:
- jq, the lightweight and flexible command-line JSON processor:
  brew install jq

- spruce, general purpose YAML & JSON merging tool:
  brew install starkandwayne/cf/spruce

- fly, concourse command line tool:
  curl --progress-bar --location 'https://ci.flintstone.cf.cloud.ibm.com/api/v1/cli?arch=amd64&platform=darwin' --output /usr/local/bin/fly && chmod a+rx /usr/local/bin/fly

- lpass, LastPass command line tool:
  brew install lastpass-cli

EOF
          ;;

        debian)
          cat <<'EOF'
Install suggestions:
- jq, the lightweight and flexible command-line JSON processor, and curl, command line tool for transferring data with URLs:
  sudo apt-get install -y jq curl

- spruce, general purpose YAML & JSON merging tool:
  curl --silent --location "https://github.com/geofffranks/spruce/releases/download/$(curl --silent --location "https://api.github.com/repos/geofffranks/spruce/releases/latest" | jq --raw-output .tag_name)/spruce-linux-amd64" --output /usr/local/bin/spruce && chmod a+rx /usr/local/bin/spruce

- fly, concourse command line tool:
  curl --progress-bar --location 'https://ci.flintstone.cf.cloud.ibm.com/api/v1/cli?arch=amd64&platform=linux' --output /usr/local/bin/fly && chmod a+rx /usr/local/bin/fly

- lpass, LastPass command line tool:
  apt-get update >/dev/null && \
  apt-get --no-install-recommends -yqq install \
    bash-completion \
    build-essential \
    cmake \
    libcurl3  \
    libcurl3-openssl-dev  \
    libssl1.0 \
    libssl1.0-dev \
    libxml2 \
    libxml2-dev  \
    pkg-config \
    ca-certificates \
    xclip \
    git-core && \
  git clone https://github.com/lastpass/lastpass-cli /tmp/lpass && \
  make -C /tmp/lpass install && \
  rm -rf /tmp/lpass

EOF
          ;;

        suse)
          cat <<'EOF'
Install suggestions:
- jq, the lightweight and flexible command-line JSON processor, and curl, command line tool for transferring data with URLs:
  zypper install -y jq curl

- spruce, general purpose YAML & JSON merging tool:
  curl --silent --location "https://github.com/geofffranks/spruce/releases/download/$(curl --silent --location "https://api.github.com/repos/geofffranks/spruce/releases/latest" | jq --raw-output .tag_name)/spruce-linux-amd64" --output /usr/local/bin/spruce && chmod a+rx /usr/local/bin/spruce

- fly, concourse command line tool:
  curl --progress-bar --location 'https://ci.flintstone.cf.cloud.ibm.com/api/v1/cli?arch=amd64&platform=linux' --output /usr/local/bin/fly && chmod a+rx /usr/local/bin/fly

- lpass, LastPass command line tool:
  zypper install -y -t pattern devel_C_C++ && \
  zypper install -y make cmake gcc gcc-c++ libxml2-devel libopenssl-devel libcurl-devel && \
  git clone https://github.com/lastpass/lastpass-cli /tmp/lpass && \
  make -C /tmp/lpass install && \
  rm -rf /tmp/lpass

EOF
          ;;

        unknown)
          echo "Sorry, we do not have any install suggestions for your platform. Feel free to PR it."
          ;;
      esac

      exit 1
    fi
  done
}

PipelineInfo() {
  local -r PIPELINE=$1
  local -r TARGET=$2

  CONCOURSE_URL=$(spruce json "$HOME/.flyrc" | jq -r ".targets[\"$TARGET\"].api")
  TEAM_NAME=$(spruce json "$HOME/.flyrc" | jq -r ".targets[\"$TARGET\"].team")
  API_PIPELINE_PATH="${CONCOURSE_URL}/api/v1/teams/${TEAM_NAME}/pipelines"

  TOKEN=$(spruce json "$HOME/.flyrc" | jq -r ".targets[\"$TARGET\"].token.value")
  if [[ ${TOKEN} == "null" ]]; then
    echo "Not able to retrieve the token, skipping info section"
    return
  fi

  PIPELINE_EXISTS=$(curl --silent --header "Authorization: Bearer $TOKEN" -X GET "${API_PIPELINE_PATH}/${PIPELINE}")
  if [[ -z ${PIPELINE_EXISTS} ]]; then
    echo "Pipeline is not deployed."
    return
  fi

  ALL_GROUPS=$(curl -s --header "Authorization: Bearer $TOKEN" -X GET "${API_PIPELINE_PATH}/${PIPELINE}" | jq -r '.groups[]?.name')
  PIPELINE_STATUS=$(curl -s --header "Authorization: Bearer $TOKEN" -X GET "${API_PIPELINE_PATH}/${PIPELINE}" | jq -r .paused)
  PIPELINE_RESOURCES=$(curl -s --header "Authorization: Bearer $TOKEN" -X GET "${API_PIPELINE_PATH}/${PIPELINE}/resources" | jq '. | length')

  echo -e "Displaying some insights of the $GREEN${PIPELINE}$NC pipeline:"
  echo -e ""
  echo -e "Paused: $GREEN${PIPELINE_STATUS}$NC"
  echo -e "Resources: $GREEN${PIPELINE_RESOURCES}$NC"

  if [ "$ALL_GROUPS" != "" ]; then
    echo -e "Groups: "
    for GROUP in $ALL_GROUPS; do
      echo -e "  ---->" "$GREEN${GROUP}$NC"
    done
  fi

  CONCOURSE_URL=$(spruce json "${HOME}"/.flyrc | jq -r ".targets[\"${TARGET}\"].api")
  TEAM_NAME=$(spruce json "${HOME}"/.flyrc | jq -r ".targets[\"${TARGET}\"].team")
  echo
  echo "On a Mac with iTerm2, just press 'Cmd' and click on the link to open a browser tab with the pipeline:"
  echo -e '\033[4;94m'"${CONCOURSE_URL}/teams/${TEAM_NAME}/pipelines/${PIPELINE}"'\033[0m'
  echo
}

FlyPipeline() {
  local -r target=$1
  local -r pipeline=$2

  pushd "${BASEDIR}/pipelines/${pipeline}" >/dev/null 2>&1
  if [ -f "pipeline.yml" ] && [ -f "vars.yml" ]; then
    fly --target "${target}" set-pipeline \
      --pipeline="${pipeline}" \
      --config=<(erb "pipeline.yml") \
      --load-vars-from=<(lpass show "Shared-CF-Containerization/ContainerizedCF-CI-Secrets" --notes) \
      --load-vars-from="vars.yml"
    PipelineInfo "$pipeline" "$target"
  else
    echo "Error: required ${pipeline} pipeline files are missing: pipeline.yml, and vars.yml"

  fi
  popd >/dev/null 2>&1
}

# --- --- ---

CheckPreReqs

if [ "$#" -ne 2 ]; then
  echo "Usage: $0 <CONCOURSE_TARGET> <PIPELINE>"
  echo ""

  # Usage help, part 1, show available concourse targets
  echo -e "Available targets:"
  spruce json "$HOME/.flyrc" | jq --raw-output '.targets | keys[]' | while read -r target; do
    echo -e "- $GREEN${target}$NC"
  done
  echo ""

  # Usage help, part 2, show available pipelines (directories under pipelines)
  echo -e "Available pipelines:"
  (cd "${BASEDIR}/pipelines" 2>/dev/null && ls -1) | while read -r item; do
    echo -e "- $GREEN${item}$NC"
  done
  echo ""

  exit 1
fi

echo -e '\n'

echo "Info: Flying pipeline $2 in concourse target $1..."
FlyPipeline "$1" "$2"