Dockerfile-CI-CD

#-------------------------------------------------------------------------------
# To avoid rate limit issues with GitLab and DockerHub, push the CI-CD image to GHCR.
# Current GHCR limit:
# - 100 pulls per 6 hours per IP address for anonymous users.
# - Unlimited pulls for users authenticated with a GitHub account and a valid PAT
#
# Commands to build and push:
#
# docker buildx create --use
# docker buildx build --platform linux/amd64,linux/arm64 -t ghcr.io/rnacentral/ci-cd:3.20-alpine -f Dockerfile-CI-CD --push .
#
#-------------------------------------------------------------------------------
# Build container with kubectl and helm to be used by GitLab CI/CD

FROM arm64v8/alpine:3.14

ARG TARGETOS
ARG TARGETARCH

# Use kubectl version v1.23.8 and helm version v3.16.1
RUN apk -U upgrade \
    && apk add --no-cache ca-certificates bash git openssh curl gettext jq \
    && wget -q https://dl.k8s.io/release/v1.23.8/bin/${TARGETOS}/${TARGETARCH}/kubectl -O /usr/local/bin/kubectl \
    && wget -q https://get.helm.sh/helm-v3.16.1-${TARGETOS}-${TARGETARCH}.tar.gz -O - | tar -xzO ${TARGETOS}-${TARGETARCH}/helm > /usr/local/bin/helm \
    && chmod +x /usr/local/bin/helm /usr/local/bin/kubectl \
    && mkdir /config \
    && chmod g+rwx /config /root \
    && kubectl version --client \
    && helm version

WORKDIR /config

CMD bash