| #!/bin/bash |
| |
| usage() { |
| cat << EOF |
| Install (or upgrade) an umbrella Helm Chart, and its subcharts, as separate Helm Releases |
| |
| The umbrella Helm Chart is broken apart into a parent release and subchart releases. |
| Subcharts the are disabled (<chart>.enabled=false) will not be installed or upgraded. |
| All releases are grouped and deployed within the same namespace. |
| |
| |
| The deploy arguments must be a release and chart. The chart |
| argument can be either: a chart reference('stable/onap'), a path to a chart directory, |
| a packaged chart, or a fully qualified URL. For chart references, the latest |
| version will be specified unless the '--version' flag is set. |
| |
| To override values in a chart, use either the '--values' flag and pass in a file |
| or use the '--set' flag and pass configuration from the command line, to force string |
| values, use '--set-string'. |
| |
| You can specify the '--values'/'-f' flag multiple times. The priority will be given to the |
| last (right-most) file specified. For example, if both myvalues.yaml and override.yaml |
| contained a key called 'Test', the value set in override.yaml would take precedence: |
| |
| $ helm deploy demo ./onap --namespace onap -f openstack.yaml -f overrides.yaml |
| |
| You can specify the '--set' flag multiple times. The priority will be given to the |
| last (right-most) set specified. For example, if both 'bar' and 'newbar' values are |
| set for a key called 'foo', the 'newbar' value would take precedence: |
| |
| $ helm deploy demo local/onap --namespace onap -f overrides.yaml --set log.enabled=false --set vid.enabled=false |
| |
| Usage: |
| helm deploy [RELEASE] [CHART] [flags] |
| |
| Flags: |
| --namespace string namespace to install the release into. Defaults to the current kube config namespace. |
| --set stringArray set values on the command line (can specify multiple or separate values with commas: key1=val1,key2=val2) |
| --set-string stringArray set STRING values on the command line (can specify multiple or separate values with commas: key1=val1,key2=val2) |
| -f, --values valueFiles specify values in a YAML file or a URL(can specify multiple) (default []) |
| EOF |
| } |
| |
| parse_yaml() { |
| local prefix=$2 |
| local s='[[:space:]]*' w='[a-zA-Z0-9_]*' fs=$(echo @|tr @ '\034') |
| sed -ne "s|^\($s\)\($w\)$s:$s\"\(.*\)\"$s\$|\1$fs\2$fs\3|p" \ |
| -e "s|^\($s\)\($w\)$s:$s\(.*\)$s\$|\1$fs\2$fs\3|p" $1 | |
| awk -F$fs '{ |
| indent = length($1)/2; |
| vname[indent] = $2; |
| for (i in vname) {if (i > indent) {delete vname[i]}} |
| if (length($3) > 0) { |
| vn=""; for (i=0; i<indent; i++) {vn=(vn)(vname[i])("_")} |
| printf("%s%s%s=\"%s\"\n", "'$prefix'",vn, $2, $3); |
| } |
| }' |
| } |
| |
| generate_overrides() { |
| SUBCHART_NAMES=($(cat $COMPUTED_OVERRIDES | grep -v '^\s\s')) |
| |
| for index in "${!SUBCHART_NAMES[@]}"; do |
| START=${SUBCHART_NAMES[index]} |
| END=${SUBCHART_NAMES[index+1]} |
| if [[ $START == "global:" ]]; then |
| echo "global:" > $GLOBAL_OVERRIDES |
| cat $COMPUTED_OVERRIDES | sed '/common:/,/consul:/d' \ |
| | sed -n '/'"$START"'/,/'log:'/p' | sed '1d;$d' >> $GLOBAL_OVERRIDES |
| else |
| SUBCHART_DIR="$CACHE_SUBCHART_DIR/$(cut -d':' -f1 <<<"$START")" |
| if [[ -d "$SUBCHART_DIR" ]]; then |
| cat $COMPUTED_OVERRIDES | sed -n '/'"$START"'/,/'"$END"'/p' \ |
| | sed '1d;$d' | cut -c3- > $SUBCHART_DIR/subchart-overrides.yaml |
| fi |
| fi |
| done |
| } |
| |
| deploy() { |
| RELEASE=$1 |
| CHART_URL=$2 |
| FLAGS=${@:3} |
| CHART_REPO="$(cut -d'/' -f1 <<<"$CHART_URL")" |
| CHART_NAME="$(cut -d'/' -f2 <<<"$CHART_URL")" |
| CACHE_DIR=~/.helm/plugins/deploy/cache |
| CHART_DIR=$CACHE_DIR/$CHART_NAME |
| CACHE_SUBCHART_DIR=$CHART_DIR-subcharts |
| # should pass all flags instead |
| NAMESPACE="$(echo $FLAGS | sed -n 's/.*\(namespace\).\s*/\1/p' | cut -c10-)" |
| |
| # clear previously cached charts |
| rm -rf $CACHE_DIR |
| |
| # fetch umbrella chart (parent chart containing subcharts) |
| if [[ -d "$CHART_URL" ]]; then |
| mkdir -p $CHART_DIR |
| cp -R $CHART_URL/* $CHART_DIR/ |
| |
| cd $CHART_DIR/charts/ |
| for subchart in * ; do |
| tar xzf ${subchart} |
| done |
| rm -rf *.tgz |
| else |
| helm fetch $CHART_URL --untar --untardir $CACHE_DIR |
| fi |
| |
| # move out subcharts to process separately |
| mkdir -p $CACHE_SUBCHART_DIR |
| mv $CHART_DIR/charts/* $CACHE_SUBCHART_DIR/ |
| # temp hack - parent chart needs common subchart |
| mv $CACHE_SUBCHART_DIR/common $CHART_DIR/charts/ |
| |
| # disable dependencies |
| rm $CHART_DIR/requirements.lock |
| mv $CHART_DIR/requirements.yaml $CHART_DIR/requirements.deploy |
| |
| # compute overrides for parent and all subcharts |
| COMPUTED_OVERRIDES=$CACHE_DIR/$CHART_NAME/computed-overrides.yaml |
| helm upgrade -i $RELEASE $CHART_DIR $FLAGS --dry-run --debug \ |
| | sed -n '/COMPUTED VALUES:/,/HOOKS:/p' | sed '1d;$d' > $COMPUTED_OVERRIDES |
| |
| # extract global overrides to apply to parent and all subcharts |
| GLOBAL_OVERRIDES=$CHART_DIR/global-overrides.yaml |
| generate_overrides $COMPUTED_OVERRIDES $GLOBAL_OVERRIDES |
| |
| # upgrade/install parent chart first |
| helm upgrade -i $RELEASE $CHART_DIR --namespace $NAMESPACE -f $COMPUTED_OVERRIDES |
| |
| # parse computed overrides - will use to determine if a subchart is "enabled" |
| eval $(parse_yaml $COMPUTED_OVERRIDES "computed_") |
| |
| # upgrade/install each "enabled" subchart |
| cd $CACHE_SUBCHART_DIR |
| for subchart in * ; do |
| VAR="computed_${subchart}_enabled" |
| COMMAND="$"$VAR |
| eval "SUBCHART_ENABLED=$COMMAND" |
| if [[ $SUBCHART_ENABLED == "true" ]]; then |
| SUBCHART_OVERRIDES=$CACHE_SUBCHART_DIR/$subchart/subchart-overrides.yaml |
| helm upgrade -i "${RELEASE}-${subchart}" $CACHE_SUBCHART_DIR/$subchart \ |
| --namespace $NAMESPACE -f $GLOBAL_OVERRIDES -f $SUBCHART_OVERRIDES |
| fi |
| done |
| } |
| |
| if [[ $# < 2 ]]; then |
| usage |
| exit 0 |
| fi |
| |
| case "${1:-"help"}" in |
| "help") |
| usage |
| ;; |
| "--help") |
| usage |
| ;; |
| "-h") |
| usage |
| ;; |
| *) |
| deploy $1 $2 ${@:3} |
| ;; |
| esac |
| |
| exit 0 |