rancher-compose wrapper

rancherw

#!/bin/bash

# Notes:
# - RANCHER_URL, RANCHER_ACCESS_KEY, RANCHER_SECRET_KEY must be set
# - jq is required (brew install jq) // TODO: remove this dependency
# - cache is located at $HOME/.rancher-compose/cache.txt
# - usage is the same as rancher-compose, it's just a wrapper

if [ `uname` == "Darwin" ]; then
  ARCH="darwin-amd64"
elif [ `uname` == "Linux" ]; then
  ARCH="linux-amd64"
fi

COMPOSE_HOME="${HOME}/.rancher-compose"
COMPOSE_CACHE="${COMPOSE_HOME}/cache.txt"
RANCHER_DOMAIN=`echo $RANCHER_URL | awk -F '/' '{print $3}'`
mkdir -p "$COMPOSE_HOME"

if [ "$VERSION" == "" ]; then
  VERSION=`cat $COMPOSE_CACHE | grep "$RANCHER_DOMAIN" | awk '{print $2}'`
fi

if [ "$VERSION" == "" ]; then
  VERSION=`curl --silent --user ${RANCHER_ACCESS_KEY}:${RANCHER_SECRET_KEY} \
    "${RANCHER_URL}/activesettings/1as!rancher.compose.version" \
    | jq -r ".value"`

  echo "$RANCHER_DOMAIN $VERSION" >> $COMPOSE_CACHE
fi

if [ "$VERSION" == "" ]; then
  echo "Cannot get rancher-compose version"
  exit 1
fi

COMPOSE_DIR="${COMPOSE_HOME}/${VERSION}"
COMPOSE_BIN="${COMPOSE_DIR}/rancher-compose"
URL="https://github.com/rancher/rancher-compose/releases/download/${VERSION}/rancher-compose-${ARCH}-${VERSION}.tar.gz"
mkdir -p $COMPOSE_DIR

if [ ! -f $COMPOSE_BIN ]; then
  ARCHIVE="${COMPOSE_BIN}.tar.gz"
  TEMP_DIR="$COMPOSE_DIR/rancher-compose-${VERSION}"
  if [ ! -f $ARCHIVE ]; then
    wget -O $ARCHIVE $URL
  fi
  tar -zxf $ARCHIVE -C $COMPOSE_DIR
  mv "$TEMP_DIR/rancher-compose" "$COMPOSE_BIN"
  rm -rf "$TEMP_DIR"
  rm -rf "$ARCHIVE"
fi

$COMPOSE_BIN "$@"