Start using debian as base image (#35)

* Start using debian as base image

Thanks to this we can use pre-built image of AZ which speeds up
the docker build allot

Co-authored-by: Carl Andersson <carl.andersson@xenit.se>

docker/Dockerfile

@@ -7,18 +7,18 @@ COPY ./go-tf-prepare/main.go main.go
 COPY ./go-tf-prepare/pkg/ pkg/
 RUN GOOS=linux GOARCH=amd64 GO111MODULE=on go build -o tf-prepare main.go
 
-FROM alpine:3.12.1
+FROM debian:11.1-slim
 
-RUN mkdir -p /tmp/install /usr/src /work
-WORKDIR /tmp/install
+#Base
+RUN apt-get update -y && \
+    apt-get install -y git curl openssl pip make unzip gpg wget && \
+    apt-get install -y ansible=2.10.7+merged+base+2.10.8+dfsg-1 && \
+    apt-get install -y packer=1.6.6+ds1-2+b3
 
-# libc6-compat is needed to load local terraform providers
-RUN apk update && \
-    apk add bash libc6-compat
+RUN pip --no-cache-dir install -U pip
 
-# Base should always be first
-COPY install-scripts/base.sh /usr/src/install-scripts/base.sh
-RUN /usr/src/install-scripts/base.sh
+RUN mkdir -p /tmp/install /usr/src /work
+WORKDIR /tmp/install
 
 # Install Azure CLI
 COPY install-scripts/azure-cli.sh /usr/src/install-scripts/azure-cli.sh
@@ -28,14 +28,6 @@ RUN /usr/src/install-scripts/azure-cli.sh --version="2.30.0"
 COPY install-scripts/aws-cli.sh /usr/src/install-scripts/aws-cli.sh
 RUN /usr/src/install-scripts/aws-cli.sh --version="2.1.10"
 
-# Install Ansible
-COPY install-scripts/ansible.sh /usr/src/install-scripts/ansible.sh
-RUN /usr/src/install-scripts/ansible.sh --version="2.10.3"
-
-# Install Packer
-COPY install-scripts/packer.sh /usr/src/install-scripts/packer.sh
-RUN /usr/src/install-scripts/packer.sh --version="1.6.5" --sha="a49f6408a50c220fe3f1a6192ea21134e2e8f31092c507614cd27ad4f913234b"
-
 # Install tflint
 COPY install-scripts/tflint.sh /usr/src/install-scripts/tflint.sh
 RUN /usr/src/install-scripts/tflint.sh --version="v0.24.1" --sha="2dbe3b423f5d3e0bb458d51761c97d51a4fd6c3d7bd1efd87c4aa3dc5199e7b2"
@@ -82,13 +74,13 @@ RUN /usr/src/install-scripts/kubectl.sh --version="v1.19.0" --sha="79bb0d2f05487
 COPY install-scripts/helm.sh /usr/src/install-scripts/helm.sh
 RUN /usr/src/install-scripts/helm.sh --version="v3.4.1" --sha="538f85b4b73ac6160b30fd0ab4b510441aa3fa326593466e8bf7084a9c288420"
 
-# Cleanup should always be last
-COPY install-scripts/cleanup.sh /usr/src/install-scripts/cleanup.sh
-RUN /usr/src/install-scripts/cleanup.sh
-
 COPY --from=tf-prepare-builder /workspace/tf-prepare /usr/local/bin/tf-prepare
 RUN chmod +x /usr/local/bin/tf-prepare
 
+#Cleanup
+RUN apt-get autoremove && \
+    apt-get clean
+
 RUN rm -rf /tmp/install
 
 COPY opa-policies /opt/opa-policies

docker/install-scripts/azure-cli.sh

@@ -13,6 +13,16 @@ while [ $# -gt 0 ]; do
   shift
 done
 
-pip --no-cache-dir install azure-cli==${VERSION}
+curl -sL https://packages.microsoft.com/keys/microsoft.asc |
+    gpg --dearmor |
+    tee /etc/apt/trusted.gpg.d/microsoft.gpg > /dev/null
+
+    AZ_REPO=$(lsb_release -cs)
+echo "deb [arch=amd64] https://packages.microsoft.com/repos/azure-cli/ $AZ_REPO main" |
+    tee /etc/apt/sources.list.d/azure-cli.list
+
+  apt-get update
+  apt-get install -y azure-cli=${VERSION}-1~$AZ_REPO
+
 az extension add --name azure-devops
 az extension add --name managementpartner