Add Google Cloud K3s infrastructure support

- Add Terraform configuration for GCP instance and storage
- Add startup script for K3s installation and configuration
- Add pipeline scripts for deployment and management
- Add Forgejo deployment manifests and configuration

gcloud/tf/scripts/k3s-vm-startup.sh

@@ -0,0 +1,102 @@
+#!/bin/bash
+
+INFCTL_GIT_REPO="https://codeberg.org/headshed/infctl-cli.git"
+INFCTL_GIT_REPO_BRANCH="feature/gcloud-k3s"
+INFCTL_INSTALL_DIR="/opt/src"
+
+# ensure only run once
+if [[ -f /etc/startup_was_launched ]]; then exit 0; fi
+
+touch /etc/startup_was_launched
+
+
+# Format the k3s disk if not already formatted
+
+# This creates an ext4 filesystem on the specified 
+# disk with no reserved space for root, forces the operation, 
+# fully initializes inode tables and the journal, and enables 
+# discard/TRIM for better performance on SSDs or 
+# thin-provisioned storage.
+if ! lsblk | grep -q "/var/lib/rancher/k3s"; then
+    mkfs.ext4 -m 0 -F -E lazy_itable_init=0,lazy_journal_init=0,discard /dev/disk/by-id/google-k3s-disk
+    mkdir -p /var/lib/rancher/k3s
+    mount -o discard,defaults /dev/disk/by-id/google-k3s-disk /var/lib/rancher/k3s
+    chmod a+w /var/lib/rancher/k3s
+fi
+# A disk named k3s-disk in your Terraform configuration will
+# appear as /dev/disk/by-id/google-k3s-disk.
+
+# Format the app-data-disk if not already formatted
+if ! lsblk | grep -q "/mnt/disks/app-data"; then
+    mkfs.ext4 -m 0 -F -E lazy_itable_init=0,lazy_journal_init=0,discard /dev/disk/by-id/google-app-data-disk
+    mkdir -p /mnt/disks/app-data
+    mount -o discard,defaults /dev/disk/by-id/google-app-data-disk /mnt/disks/app-data
+    chmod a+w /mnt/disks/app-data
+fi
+# Similarly, a disk named app-data-disk will appear as /dev/
+# disk/by-id/google-app-data-disk.
+
+# Add to /etc/fstab for persistence (only if not already present)
+if ! grep -q "/var/lib/rancher/k3s" /etc/fstab; then
+    echo "/dev/disk/by-id/google-k3s-disk /var/lib/rancher/k3s ext4 defaults,discard 0 0" >> /etc/fstab
+fi
+if ! grep -q "/mnt/disks/app-data" /etc/fstab; then
+    echo "/dev/disk/by-id/google-app-data-disk /mnt/disks/app-data ext4 defaults,discard 0 0" >> /etc/fstab
+fi
+
+
+# apt install
+apt update
+apt install -y ncdu htop git curl
+
+# helm install
+curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3
+chmod 700 get_helm.sh
+/bin/bash get_helm.sh
+
+# user bashrc config
+rc=/home/user/.bashrc
+{
+    echo "export KUBECONFIG=~/.kube/config"
+    echo "alias l='ls -lah'"
+    echo "alias ll='ls -lh'"
+    echo "alias k=kubectl"
+    echo "export dry='--dry-run=client'"
+    echo "export o='-oyaml'"
+    echo "alias kcd='kubectl config use-context'"
+    echo "source <(kubectl completion bash)"
+    echo "complete -F __start_kubectl k"
+    echo "alias k='kubectl'"
+} >> $rc
+
+
+# Install k3s 
+k3s_version="v1.32.8+k3s1"
+curl -sfL https://get.k3s.io \
+| \
+    INSTALL_K3S_VERSION="$k3s_version" sh -s - server \
+    --cluster-init \
+    --disable traefik \
+    --disable servicelb 
+
+
+# Set up kubeconfig for the 'user' user
+mkdir -p /home/user/.kube
+chown user:user /home/user/.kube
+chmod 700 /home/user/.kube
+# Copy the kubeconfig file to the user's home directory 
+# for easier access
+cp /etc/rancher/k3s/k3s.yaml /home/user/.kube/config
+chown user:user /home/user/.kube/config
+
+# install  infctl
+curl -L https://codeberg.org/headshed/infctl-cli/raw/branch/main/install.sh | bash
+
+# clone infctl repo if not already present
+if [[ ! -d "$INFCTL_INSTALL_DIR" ]]; then
+    mkdir -p "$INFCTL_INSTALL_DIR"
+    cd ${INFCTL_INSTALL_DIR} || "echo 'Failed to change directory to $INFCTL_INSTALL_DIR' ; exit 1"
+    git clone --branch "$INFCTL_GIT_REPO_BRANCH" "$INFCTL_GIT_REPO" || "echo 'Failed to clone $INFCTL_GIT_REPO' ; exit 1"
+    chown -R user:user "$INFCTL_INSTALL_DIR"
+fi
+