How do I add Pulumi to my GitHub Codespaces / VSCode .NET devcontainer? - visual-studio-code

Question

I want to develop and deploy IaC with Pulumi .NET / C# from a VS Code .devcontainer. How can I add this capability to the environment?

Answer 1

I included the build container steps from https://github.com/pulumi/pulumi-docker-containers/blob/main/docker/dotnet/Dockerfile into .devcontainer/Dockerfile:
ARG DOTNET_VARIANT="3.1"
ARG PULUMI_VERSION=latest
ARG INSTALL_NODE="true"
ARG NODE_VERSION="lts/*"
# --------------------------------------------------------------------------------
FROM debian:11-slim AS builder
RUN apt-get update -y && \
apt-get upgrade -y && \
apt-get install -y \
curl \
build-essential \
git
RUN if [ "$PULUMI_VERSION" = "latest" ]; then \
curl -fsSL https://get.pulumi.com/ | bash; \
else \
curl -fsSL https://get.pulumi.com/ | bash -s -- --version $PULUMI_VERSION ; \
fi
# --------------------------------------------------------------------------------
FROM mcr.microsoft.com/vscode/devcontainers/dotnetcore:0-${DOTNET_VARIANT}
RUN if [ "${INSTALL_NODE}" = "true" ]; then su vscode -c "umask 0002 && . /usr/local/share/nvm/nvm.sh && nvm install ${NODE_VERSION} 2>&1"; fi
COPY --from=builder /root/.pulumi/bin/pulumi /pulumi/bin/pulumi
COPY --from=builder /root/.pulumi/bin/*-dotnet* /pulumi/bin/
ENV PATH "/pulumi/bin:${PATH}"
and I control the process with this .devcontainer/devcontainer.json:
// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
// https://github.com/microsoft/vscode-dev-containers/tree/v0.203.0/containers/alpine
{
"name": "C# (.NET)",
"build": {
"dockerfile": "Dockerfile",
"args": {
"DOTNET_VARIANT": "3.1",
"PULUMI_VERSION": "latest",
"INSTALL_NODE": "true",
"NODE_VERSION": "lts/*"
}
},
"features": {
"azure-cli": "latest"
},
// Set *default* container specific settings.json values on container create.
"settings": {},
// Add the IDs of extensions you want installed when the container is created.
"extensions": [
"ms-dotnettools.csharp"
],
// Use 'forwardPorts' to make a list of ports inside the container available locally.
// "forwardPorts": [],
// Use 'postCreateCommand' to run commands after the container is created.
// "postCreateCommand": "uname -a",
// Replace when using a ptrace-based debugger like C++, Go, and Rust
// "runArgs": [ "--init", "--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined" ],
"runArgs": [
"--init"
],
// Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
"remoteUser": "vscode"
}
be aware that the Rebuild will take a while and that you probably have to reload the devcontainer once it indicates success in the GitHub Codespaces: Details.
After that pulumi login and e.g. pulumi new azure-csharp should work on the container.

Answer 2

You can spin up a codespace, and configure the devcontainer from within the codespace.
I did it just now,
Access the Command Palette (Shift + Command + P / Ctrl + Shift + P), then >start typing "dev container". Select Codespaces: Add Development Container >Configuration Files....
just follow this guide
from within following this guide - https://docs.github.com/en/codespaces/setting-up-your-project-for-codespaces/setting-up-your-project-for-codespaces
I was inspired by the builder container approach for DOTNET mentioned in this thread, and here is how I added pulumi to my GO codespace dockerfile.
Dockerfile
ARG GO_VARIANT="1"
ARG PULUMI_VERSION=latest
FROM debian:11-slim AS builder
RUN apt-get update -y && \
apt-get upgrade -y && \
apt-get install -y \
curl \
build-essential \
git
RUN if [ "$PULUMI_VERSION" = "latest" ]; then \
curl -fsSL https://get.pulumi.com/ | bash; \
else \
curl -fsSL https://get.pulumi.com/ | bash -s -- --version $PULUMI_VERSION ; \
fi
FROM mcr.microsoft.com/vscode/devcontainers/go:0-${GO_VARIANT}
# [Choice] Node.js version: none, lts/*, 16, 14, 12, 10
ARG NODE_VERSION="none"
RUN if [ "${NODE_VERSION}" != "none" ]; then su vscode -c "umask 0002 && . /usr/local/share/nvm/nvm.sh && nvm install ${NODE_VERSION} 2>&1"; fi
COPY --from=builder /root/.pulumi/bin/pulumi /pulumi/bin/pulumi
COPY --from=builder /root/.pulumi/bin/*-go* /pulumi/bin/
ENV PATH "/pulumi/bin:${PATH}"
ENV GOOS "linux"
ENV GOARCH "amd64"
Snippit of code from devcontainer.json
"args": {
... //redacted for clarity
"GO_VARIANT": "1.18",
}
)
I can login with azure, pulumi and pulumi up is also working.
Full example here
https://github.com/DevOpsJava/solution-using-secret
I fixed an issue with pulumi up, which turned out to be a resource problem regarding memory. Switched codespace from 2 to 4 cores, which also doubled the memory to 8GB.