Update to use release 2022.01

Author: Simon Emms

Diff for: Dockerfile

@@ -1,13 +1,10 @@
-ARG GITPOD_VERSION="main.1887"
-
-FROM eu.gcr.io/gitpod-core-dev/build/installer:$GITPOD_VERSION as installer
-
 FROM mcr.microsoft.com/azure-cli:2.9.1
 
 RUN apk add --no-cache \
   gettext \
   jq
 
+ARG GITPOD_VERSION="2022.01"
 ARG HELM_VERSION=v3.6.3
 
 RUN curl -fsSL "https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl" -o /usr/local/bin/kubectl \
@@ -21,7 +18,8 @@ RUN mkdir -p /tmp/helm/ \
 RUN curl -fsSL https://github.com/mikefarah/yq/releases/download/v4.12.2/yq_linux_amd64 -o /usr/local/bin/yq \
   && chmod +x /usr/local/bin/yq
 
-COPY --from=installer /app/installer /usr/local/bin/gitpod-installer
+RUN curl -fsSL https://github.com/gitpod-io/gitpod/releases/download/${GITPOD_VERSION}/gitpod-installer-linux-amd64 -o /usr/local/bin/gitpod-installer \
+  && chmod +x /usr/local/bin/gitpod-installer
 
 WORKDIR /gitpod