added gpg and gopass to argocdserver

Dockerfile

@@ -0,0 +1,22 @@
+# patch argocd repo server to be able to decrypt secrets
+FROM argoproj/argocd:latest
+
+# Switch to root for the ability to perform install
+USER root
+ARG GOPASS_VERSION="1.8.6"
+# Install tools needed for your repo-server to retrieve & decrypt secrets, render manifests 
+# (e.g. curl, awscli, gpg, sops)
+RUN apt-get update && \
+    apt-get install -y \
+        wget \
+        gpg &&\
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* && \
+    wget https://github.com/gopasspw/gopass/releases/download/v$GOPASS_VERSION/gopass-$GOPASS_VERSION-linux-amd64.tar.gz &&\
+    tar xf ./gopass-$GOPASS_VERSION-linux-amd64.tar.gz &&\
+    mv ./gopass-$GOPASS_VERSION-linux-amd64/gopass /usr/local/bin &&\
+    rm -rf ./gopass-$GOPASS_VERSION-linux-amd64* &&\
+    chmod +x /usr/local/bin/gopass
+
+# Switch back to non-root user
+USER argocd