fix: bump to 3.8.1

Reviewed-on: #7

.drone.yml

@@ -10,7 +10,7 @@ steps:
 - name: markdown lint
   commands:
   - markdownlint *.md
-  image: docker.io/volkerraschek/markdownlint:0.30.0
+  image: docker.io/volkerraschek/markdownlint:0.31.1
   resources:
     limits:
       cpu: 50

Dockerfile

@@ -1,11 +1,16 @@
-FROM docker.io/library/alpine:3.14
+FROM docker.io/library/alpine:3.15
 
 ARG HELM_VERSION
 
-COPY install.sh /install.sh
-RUN VERSION=${HELM_VERSION} /install.sh
+RUN apk add bash curl git openssl && \
+    curl https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 --output /tmp/install.sh
+
+RUN [[ ${HELM_VERSION} == "" ]]; bash /tmp/install.sh
+RUN [[ ${HELM_VERSION} != "" ]]; bash /tmp/install.sh --version ${HELM_VERSION}
+
+RUN rm /tmp/install.sh
 
 # Install additionally cm-push plugin
 RUN helm plugin install https://github.com/chartmuseum/helm-push.git
 
-ENTRYPOINT [ "/usr/bin/helm" ]
+ENTRYPOINT [ "/usr/local/bin/helm" ]

Makefile

@@ -1,6 +1,6 @@
 # HELM_VERSION
 # Only required to install a specifiy version
-HELM_VERSION?=v3.8.0 # renovate: datasource=github-releases depName=helm lookupName=helm/helm versioning=semver
+HELM_VERSION?=v3.8.1 # renovate: datasource=github-releases depName=helm lookupName=helm/helm versioning=semver
 
 # CONTAINER_RUNTIME
 # The CONTAINER_RUNTIME variable will be used to specified the path to a
@@ -49,4 +49,4 @@ container-image/push:
 # ==============================================================================
 # Declare the contents of the PHONY variable as phony.  We keep that information
 # in a variable so we can use it in if_changed.
-.PHONY: ${PHONY}
+.PHONY: ${PHONY}

install.sh

@@ -1,38 +0,0 @@
-#!/bin/sh
-
-set -xe
-
-BASE_URL=https://get.helm.sh
-
-if [ -z ${VERSION+x} ]; then
-  echo ${VERSION} not defined
-  exit 1
-fi
-
-case `uname -m` in
-  x86_64)
-    ARCH=amd64
-  ;;
-  armv7l)
-    ARCH=arm
-  ;;
-  aarch64)
-    ARCH=arm64
-  ;;
-  ppc64le)
-    ARCH=ppc64le
-  ;;
-  s390x)
-    ARCH=s390x
-  ;;
-  *)
-    echo "un-supported arch, exit ..."
-    exit 1
-  ;;
-esac
-
-apk add --update --no-cache wget git
-wget ${BASE_URL}/helm-${VERSION}-linux-${ARCH}.tar.gz -O - | tar -xz
-mv linux-${ARCH}/helm /usr/bin/helm
-chmod +x /usr/bin/helm
-rm -rf linux-${ARCH}