FROM alpine:3.13

RUN apk --no-cache add \

bash \

curl \

git \

libc6-compat \

openssh-client \

py3-pip \

py3-wheel \

python3 && \

pip install --upgrade pip==21.0.1

ARG yamllint_version=1.26.0

LABEL yamllint_version=$yamllint_version

RUN pip install "yamllint==$yamllint_version"

ARG yamale_version=3.0.4

LABEL yamale_version=$yamale_version

RUN pip install "yamale==$yamale_version"

ARG kubectl_version=v1.20.2

LABEL kubectl_version=$kubectl_version

RUN curl -LO "https://storage.googleapis.com/kubernetes-release/release/$kubectl_version/bin/linux/amd64/kubectl" && \

chmod +x kubectl && \

mv kubectl /usr/local/bin/

ARG helm_version=v3.5.1

LABEL helm_version=$helm_version

RUN curl -LO "https://get.helm.sh/helm-$helm_version-linux-amd64.tar.gz" && \

mkdir -p "/usr/local/helm-$helm_version" && \

tar -xzf "helm-$helm_version-linux-amd64.tar.gz" -C "/usr/local/helm-$helm_version" && \

ln -s "/usr/local/helm-$helm_version/linux-amd64/helm" /usr/local/bin/helm && \

rm -f "helm-$helm_version-linux-amd64.tar.gz"

COPY ./etc/chart_schema.yaml /etc/ct/chart_schema.yaml

COPY ./etc/lintconf.yaml /etc/ct/lintconf.yaml

COPY ct /usr/local/bin/ct

RUN ct --help