Manual flux helm upgrade

manual.sh

#!/bin/bash

if [ ! -f $1 ]; then
    echo "Error: $1 is not existing file path."
    exit 1
fi

lines=$(cat cluster/config/cluster-settings.yaml | yq '.data | ... comments=""';\
        sops --decrypt cluster/config/cluster-secrets.enc.yaml | yq '.stringData | ... comments=""')

subst=""

while read -r line; do
    name=${line%: *}
    value=${line#*: }
    export $name=$value
    subst+="\${$name} "
done <<< "$lines"

NAMESPACE=$(cat $1 | yq '.metadata.namespace')
NAME=$(cat $1 | yq '.metadata.name')

REPO_NAME=$(cat $1 | yq '.spec.chart.spec.sourceRef.name')
CHART=$(cat $1 | yq '.spec.chart.spec.chart')
VERSION=$(cat $1 | yq '.spec.chart.spec.version')

EXISTS=$(helm repo list -o yaml | yq '.[] | select(.name == "'$REPO_NAME'") | .name')
if [ -z "$EXISTS" ]; then
    URL=$(cat $1 | grep '# renovate: registryUrl=' | sed 's/ *# renovate: registryUrl=//')
    if [ -z "$URL" ]; then
        URL="https://..."
    fi
    echo "add repo via: "
    echo "  helm repo add $REPO_NAME $URL"
    echo "url above might not be correct"
    
    exit 1
fi


TMPFILE=$(mktemp)
cat $1 | yq '.spec.values' | envsubst "$subst" > "$TMPFILE.yaml"

helm upgrade $NAME $REPO_NAME/$CHART --version $VERSION --namespace $NAMESPACE --values $TMPFILE.yaml

rm "$TMPFILE.yaml"