cloudbuild.yaml

steps:
- name: 'gcr.io/cloud-builders/docker'
  args: [ 'build', '-t', '<region>-docker.pkg.dev/<project id>/<artifact registry name>/custom-workstation:latest', '.' ]
- name: "gcr.io/cloud-builders/docker"
  args: [ 'push', '<region>-docker.pkg.dev/<project id>/<artifact registry name>/custom-workstation:latest']

Dockerfile

FROM us-central1-docker.pkg.dev/cloud-workstations-images/predefined/code-oss:latest

RUN wget -O- https://apt.releases.hashicorp.com/gpg | \
gpg --dearmor | \
sudo tee /usr/share/keyrings/hashicorp-archive-keyring.gpg && \
echo "deb [signed-by=/usr/share/keyrings/hashicorp-archive-keyring.gpg] \
https://apt.releases.hashicorp.com $(lsb_release -cs) main" | \
sudo tee /etc/apt/sources.list.d/hashicorp.list
RUN sudo apt update && sudo apt install -y zsh gnupg software-properties-common terraform
RUN apt-get clean

# Install zsh
ENV ZSH=/opt/workstation/oh-my-zsh
RUN sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended && \
  git clone https://github.com/zsh-users/zsh-autosuggestions /opt/workstation/oh-my-zsh/plugins/zsh-autosuggestions 

# Install k9s
RUN curl -s https://api.github.com/repos/derailed/k9s/releases/latest \
| grep "browser_download_url.*Linux_amd64.tar.gz" \
| cut -d : -f 2,3 \
| tr -d \" \
| wget -qi - && mkdir -p /opt/workstation/bin && tar -xf k9s_Linux_amd64.tar.gz  -C /opt/workstation/bin

# Install extensions
RUN wget -O terraform.vsix $(curl -q https://open-vsx.org/api/hashicorp/terraform/linux-x64 | jq -r '.files.download') \
    && unzip terraform.vsix "extension/*" \
    && mv extension /opt/code-oss/extensions/terraform

RUN wget -O vscode-icons.vsix $(curl -q https://open-vsx.org/api/vscode-icons-team/vscode-icons | jq -r '.files.download') \
    && unzip vscode-icons.vsix "extension/*" \
    && mv extension /opt/code-oss/extensions/vscode-icons

# Copy workstation customization script
COPY workstation-customization.sh /etc/workstation-startup.d/211_workstation-customization.sh
RUN chmod +x /etc/workstation-startup.d/211_workstation-customization.sh

workstation-customization.sh

#!/bin/bash

CODEOSS_PATH="/home/user/.codeoss-cloudworkstations"
SETTINGS_PATH="$CODEOSS_PATH/data/Machine"

mkdir -p $SETTINGS_PATH
cat << EOF > $SETTINGS_PATH/settings.json
{
    "workbench.colorTheme": "Default Dark+",
    "terminal.integrated.defaultProfile.linux": "zsh",
    "cloudcode.project": <project id>,
}
EOF

chown -R user:user $CODEOSS_PATH
chmod -R 755 $CODEOSS_PATH

export ZSH=/opt/workstation/oh-my-zsh

if [ -f "/home/user/.zshrc" ]; then
    echo "ZSH already configured"
else

    cat << 'EOF' > /home/user/.zshrc
export PATH="$PATH:/opt/workstation/bin"
export ZSH_THEME="robbyrussell"
export ZSH=/opt/workstation/oh-my-zsh

plugins=(
    git
    zsh-autosuggestions
    kubectl
)

alias tf='terraform'
alias kc='kubectl'
alias code='code-oss-cloud-workstations'

source "$ZSH/oh-my-zsh.sh"
EOF
chsh -s $(which zsh) user
fi

zsh -c "source  $ZSH/oh-my-zsh.sh"

chown -R user:user /home/user
chown -R user:user /opt/workstation
chmod -R 755 /opt/workstation"#!/bin/bash