Merge branch 'tnir-deprecate-gitlab-charts-build-base-helm-3' into 'master'

Deprecate gitlab-charts-build-base-helm-3 (Helm 3.4) image tag

Closes #107

See merge request gitlab-org/gitlab-build-images!552

.gitlab/ci/custom.images.yml

@@ -21,8 +21,6 @@ danger:
 danger-ruby-2.6.6:
   extends: .build_and_deploy
 
-gitlab-charts-build-base-helm-3:
-  extends: .build_and_deploy
 gitlab-charts-build-base-helm-3.7:
   extends: .build_and_deploy
 

Dockerfile.gitlab-charts-build-base-helm-3

@@ -1,32 +0,0 @@
-FROM ruby:2.6.5-alpine
-MAINTAINER GitLab Distribution Team
-
-ENV HELM_VERSION=3.4.1
-ENV HELM_URL=https://get.helm.sh/helm-v${HELM_VERSION}-linux-amd64.tar.gz
-ENV HELM_HOME=/root/.helm
-
-# kubectl (possibly in gcloud?)
-ENV KUBECTL_VERSION=1.16.4
-ENV KUBECTL_URL=https://storage.googleapis.com/kubernetes-release/release/v${KUBECTL_VERSION}/bin/linux/amd64/kubectl
-
-# Install dependencies
-RUN apk --no-cache add -U openssl curl tar gzip bash ca-certificates git python3 py3-pip groff\
-  && mkdir -p /opt
-
-# Install kubectl
-RUN curl -L -o /usr/local/bin/kubectl ${KUBECTL_URL} \
-  && chmod +x /usr/local/bin/kubectl \
-  && kubectl version --client
-
-# Install Helm
-RUN wget -q -O - ${HELM_URL} | tar zxf - \
-    && mv linux-amd64/helm /usr/bin/ \
-    && chmod +x /usr/bin/helm \
-    && helm version --client
-
-# Install kubeval
-RUN mkdir -p $HELM_HOME/plugins && \
-    helm plugin install https://github.com/instrumenta/helm-kubeval
-
-# Install aws cli
-RUN pip3 install awscli