forgejo-ci-runners/mise-tasks/bootstrap_instance.sh

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#!/usr/bin/env bash
# Prerequisites:
# 1password vault created with a single item in it with the property 'runner_token'.
# Define the vault and item used.
# Usage: ./bootstrap_instace.sh <incus vm instance name>
set -euo pipefail
# Check if instance name is provided
if [ "$#" -ne 1 ]; then
echo "Usage: $0 <instance-name>" >&2
exit 1
fi
INCUS_INSTANCE="$1" # Use the provided instance name
# Set variables
INCUS_PATH="/var/lib/gitea-runner/default/tokenfile"
# Check if OP_SESSION environment variable exists, if not, sign in
if [ -z "${OP_SESSION:-}" ]; then
echo "Not logged in to 1Password CLI. Attempting to sign in..."
if ! eval "$(op signin)"; then
echo "Failed to sign in to 1Password CLI. Please sign in manually using 'op signin'" >&2
exit 1
fi
fi
# Retrieve both tokens from 1Password
RUNNER_TOKEN=$(op read "op://forgejo-runner/forgejo-runner/runner_token")
TAILSCALE_KEY=$(op read "op://forgejo-runner/tailscale/client_secret")
if [ -z "$RUNNER_TOKEN" ]; then
echo "Failed to retrieve runner token from 1Password" >&2
exit 1
fi
if [ -z "$TAILSCALE_KEY" ]; then
echo "Failed to retrieve Tailscale auth key from 1Password" >&2
exit 1
fi
# Function to configure runner token with retries
push_and_check_token() {
local retries=5
local count=0
while [ $count -lt $retries ]; do
echo "Attempt $((count+1)) of $retries: Configuring runner token..."
if incus exec "$INCUS_INSTANCE" -- sh -c "echo 'TOKEN=$RUNNER_TOKEN' > '$INCUS_PATH'"; then
if incus exec "$INCUS_INSTANCE" -- test -f "$INCUS_PATH"; then
echo "Runner token file successfully verified in Incus instance."
return 0
fi
fi
((count++))
echo "File not found or configuration failed. Retrying in 5 seconds..."
sleep 5
done
echo "Failed to configure and verify runner token after $retries attempts." >&2
return 1
}
# Configure runner token and Tailscale
if push_and_check_token; then
echo "Runner token successfully configured in instance $INCUS_INSTANCE"
echo "Configuring Tailscale..."
TAILSCALE_CMD="/run/current-system/sw/bin/tailscale"
TAILSCALE_ARGS=(
"--ssh"
"--auth-key=\"$TAILSCALE_KEY?ephemeral=false&preauthorized=true\""
"--advertise-tags=tag:forgejo-runner"
)
if incus exec "$INCUS_INSTANCE" -- sh -c "$TAILSCALE_CMD up ${TAILSCALE_ARGS[*]}"; then
echo "Tailscale successfully configured"
else
echo "Failed to configure Tailscale" >&2
exit 1
fi
else
echo "Failed to bootstrap $INCUS_INSTANCE" >&2
exit 1
fi
echo "Bootstrapping $INCUS_INSTANCE completed successfully."