diff options
Diffstat (limited to 'kubernetes/helm/plugins/deploy/deploy.sh')
| -rwxr-xr-x | kubernetes/helm/plugins/deploy/deploy.sh | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/kubernetes/helm/plugins/deploy/deploy.sh b/kubernetes/helm/plugins/deploy/deploy.sh new file mode 100755 index 0000000000..07455d7db4 --- /dev/null +++ b/kubernetes/helm/plugins/deploy/deploy.sh @@ -0,0 +1,168 @@ +#!/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
\ No newline at end of file |