github.com/technosophos/deis@v1.7.1-0.20150915173815-f9005256004b/contrib/util/check-user-data.sh (about)

     1  #!/usr/bin/env bash
     2  
     3  THIS_DIR=$(cd $(dirname $0); pwd) # absolute path
     4  CONTRIB_DIR=$(dirname $THIS_DIR)
     5  
     6  # Use the first command-line argument as the user-data path
     7  USER_DATA=${1:-$CONTRIB_DIR/coreos/user-data}
     8  # Use the second command-line argument as DEIS_NUM_INSTANCES
     9  NUM_INSTANCES=${2:-DEIS_NUM_INSTANCES}
    10  
    11  function parse_yaml {
    12     local prefix=$2
    13     local s='[[:space:]]*' w='[a-zA-Z0-9_]*' fs=$(echo @|tr @ '\034')
    14     sed -ne "s|^\($s\):|\1|" \
    15          -e "s|^\($s\)\($w\)$s:$s[\"']\(.*\)[\"']$s\$|\1$fs\2$fs\3|p" \
    16          -e "s|^\($s\)\($w\)$s:$s\(.*\)$s\$|\1$fs\2$fs\3|p"  $1 |
    17     awk -F$fs '{
    18        indent = length($1)/2;
    19        vname[indent] = $2;
    20        for (i in vname) {if (i > indent) {delete vname[i]}}
    21        if (length($3) > 0) {
    22           vn=""; for (i=0; i<indent; i++) {vn=(vn)(vname[i])("_")}
    23           printf("%s%s%s=\"%s\"\n", "'$prefix'",vn, $2, $3);
    24        }
    25     }'
    26  }
    27  
    28  if [[ $NUM_INSTANCES -ne 1 ]] ; then
    29      parse_yaml $USER_DATA | grep -q "#DISCOVERY_URL"
    30      if [[ $? -ne 1 ]]; then
    31          echo "No etcd discovery URL set in $USER_DATA"
    32          exit 1
    33      fi
    34  fi