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create CRD rancher helm chart the easy
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| #!/usr/bin/env bash | |
| ## desc: create k3s/rke2 crd helmChart from a default helmChart | |
| ## author: Thorsten Schifferdecker https://github.com/curx | |
| ## license: Apache 2.0 | |
| ## vars | |
| helmrepo="${1:?error no helm repository given, abort.}" | |
| helmchart_name="${2:?error no helm name given, abort.}" | |
| helmchart_namespace="${3:-${helmchart_name}-system}" | |
| helmchart_crd_export="${4:-${PWD}}/helmchartcrd-$helmchart_name.yaml" | |
| helmchart_version="${5:-""}" | |
| helmchart_included="${6:-no}" | |
| ## main | |
| # fetch helmchart url | |
| helmchart_url="$(curl -sL ${helmrepo}/index.yaml | awk '/tgz/ { print $2 }' | grep -m1 -e $helmchart_name".*"$helmchart_version - )" | |
| # if no url is included add helmrepo url | |
| if [ "$(echo $helmchart_url | grep -c http )" -eq "0" ]; then | |
| helmchart_url="${helmrepo}/${helmchart_url}" | |
| fi | |
| # create kubernetes namespace | |
| echo "[-] Create CRD k3s/rke2 helmChart \"$helmchart_name\" from \"$helmrepo\" $helmchart_version" | |
| echo " templated to file \"$helmchart_crd_export\"" | |
| # template CustomResourceDefinintion helmChart | |
| cat << EOL > $helmchart_crd_export | |
| --- | |
| # task: create namespace | |
| # | |
| apiVersion: v1 | |
| kind: Namespace | |
| metadata: | |
| creationTimestamp: null | |
| name: ${helmchart_namespace} | |
| --- | |
| # task: create helmchart for rke2/k3s | |
| # | |
| apiVersion: helm.cattle.io/v1 | |
| kind: HelmChart | |
| metadata: | |
| name: ${helmchart_name} | |
| namespace: kube-system | |
| spec: | |
| helmVersion: v3 | |
| bootstrap: false | |
| targetNamespace: ${helmchart_namespace} | |
| EOL | |
| if [ "$helmchart_included" = "yes" ]; then | |
| cat << EOL >> $helmchart_crd_export | |
| chartContent: $(curl --silent --location ${helmchart_url} | base64 -w 0 -) | |
| EOL | |
| else | |
| cat << EOL >> $helmchart_crd_export | |
| chart: ${helmchart_url} | |
| EOL | |
| fi | |
| # add default values from helmchart | |
| cat << EOL >> $helmchart_crd_export | |
| valuesContent: |- | |
| $(curl --silent --location ${helmchart_url} | tar xzf - ${helmchart_name}/values.yaml --strip-components=1 --to-stdout | paste /dev/null - | expand -4) | |
| EOL |
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