Update to use latest definition

.devcontainer/Dockerfile

@@ -1,65 +1,18 @@
-# Update the VARIANT arg in devcontainer.json to pick an Go version
-ARG VARIANT=1
-FROM golang:${VARIANT}
+# See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.137.0/containers/go/.devcontainer/base.Dockerfile
+ARG VARIANT="1"
+FROM mcr.microsoft.com/vscode/devcontainers/go:0-${VARIANT}
 
-# Options for setup script
-ARG INSTALL_ZSH="true"
-ARG UPGRADE_PACKAGES="false"
-ARG USERNAME=vscode
-ARG USER_UID=1000
-ARG USER_GID=$USER_UID
+# [Optional] Install a version of Node.js using nvm for front end dev
+ARG INSTALL_NODE="true"
+ARG NODE_VERSION="lts/*"
+RUN if [ "${INSTALL_NODE}" = "true" ]; then su vscode -c "source /usr/local/share/nvm/nvm.sh && nvm install ${NODE_VERSION} 2>&1"; fi
 
-# Install needed packages and setup non-root user. Use a separate RUN statement to add your own dependencies.
-COPY library-scripts/*.sh /tmp/library-scripts/
-RUN apt-get update \
-    && /bin/bash /tmp/library-scripts/common-debian.sh "${INSTALL_ZSH}" "${USERNAME}" "${USER_UID}" "${USER_GID}" "${UPGRADE_PACKAGES}" \
-    && apt-get autoremove -y && apt-get clean -y && rm -rf /var/lib/apt/lists/* /tmp/library-scripts
-
-# Install Go tools
-ARG GO_TOOLS_WITH_MODULES="\
-    golang.org/x/tools/gopls \
-    honnef.co/go/tools/... \
-    golang.org/x/tools/cmd/gorename \
-    golang.org/x/tools/cmd/goimports \
-    golang.org/x/tools/cmd/guru \
-    golang.org/x/lint/golint \
-    github.com/mdempsky/gocode \
-    github.com/cweill/gotests/... \
-    github.com/haya14busa/goplay/cmd/goplay \
-    github.com/sqs/goreturns \
-    github.com/josharian/impl \
-    github.com/davidrjenni/reftools/cmd/fillstruct \
-    github.com/uudashr/gopkgs/v2/cmd/gopkgs \
-    github.com/ramya-rao-a/go-outline \
-    github.com/acroca/go-symbols \
-    github.com/godoctor/godoctor \
-    github.com/rogpeppe/godef \
-    github.com/zmb3/gogetdoc \
-    github.com/fatih/gomodifytags \
-    github.com/mgechev/revive \
-    github.com/go-delve/delve/cmd/dlv"
-RUN mkdir -p /tmp/gotools \
-    && cd /tmp/gotools \
-    && export GOPATH=/tmp/gotools \
-    # Go tools w/module support
-    && export GO111MODULE=on \
-    && (echo "${GO_TOOLS_WITH_MODULES}" | xargs -n 1 go get -x )2>&1 \
-    # gocode-gomod
-    && export GO111MODULE=auto \
-    && go get -x -d github.com/stamblerre/gocode 2>&1 \
-    && go build -o gocode-gomod github.com/stamblerre/gocode \
-    # golangci-lint
-    && curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b /usr/local/bin 2>&1 \
-    # Move Go tools into path and clean up
-    && mv /tmp/gotools/bin/* /usr/local/bin/ \
-    && mv gocode-gomod /usr/local/bin/ \
-    && rm -rf /tmp/gotools
-
-ENV GO111MODULE=auto
+# [Optional] Uncomment this section to install additional OS packages.
+# RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+#     && apt-get -y install --no-install-recommends <your-package-list-here>
 
 # [Optional] Uncomment the next line to use go get to install anything else you need
 # RUN go get -x <your-dependency-or-tool>
 
-# [Optional] Uncomment this section to install additional OS packages.
-# RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
-#     && apt-get -y install --no-install-recommends <your-package-list-here>
+# [Optional] Uncomment this line to install global node packages.
+# RUN su vscode -c "source /usr/local/share/nvm/nvm.sh && npm install -g <your-package-here>" 2>&1