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Sergio Talens-Oliag 2025-03-04 12:45:05 +01:00
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bin/setup-runner.sh Executable file
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#!/bin/sh
set -e
# Variables
FORGEJO_URL="https://forgejo.mixinet.net"
RUNNER_NAME="forgejo-docker-runner"
# Compute WORK_DIR
SCRIPT="$(readlink -f "$0")"
SCRIPT_DIR="$(dirname "$SCRIPT")"
WORK_DIR_RELPATH=".."
WORK_DIR="$(readlink -f "$SCRIPT_DIR/$WORK_DIR_RELPATH")"
DATA_DIR="$WORK_DIR/data"
setup_user() {
if id -u forgejo-runner >/dev/null 2>&1; then
echo "User 'forgejo-runner' already exists."
return
fi
if id -g forgejo-runner >/dev/null 2>&1; then
echo "Group 'forgejo-runner' already exists."
else
sudo addgroup --system forgejo-runner
fi
sudo adduser --system --home /srv/forgejo-runner --no-create-home --ingroup forgejo-runner forgejo-runner
}
setup_data_dir() {
mkdir -p "$DATA_DIR"
sudo chown "$(id -u forgejo-runner):$(id -g forgejo-runner)" "$DATA_DIR"
sudo chmod 0775 "$DATA_DIR"
test -d "$DATA_DIR/.cache" || mkdir "$DATA_DIR/.cache"
sudo chown -R "$(id -u forgejo-runner):$(id -g forgejo-runner)" "$DATA_DIR/.cache"
sudo chmod 2775 "$DATA_DIR/.cache"
}
setup_runner() {
if [ -f "$DATA_DIR/.runner" ]; then
sudo chown "$(id -u forgejo-runner):$(id -g forgejo-runner)" "$DATA_DIR/.runner"
echo "Runner already configured, remove '$DATA_DIR/.runner' to configure again."
return
fi
forgejo_secret="$(openssl rand -hex 20)"
cd "$WORK_DIR" || exit 1
# Run the runner on a container usign the existing docker-compose file
RUNNER_UID="$(id -u forgejo-runner)" RUNNER_GID="$(id -g forgejo-runner)" docker compose run --rm runner \
forgejo-runner create-runner-file --instance "$FORGEJO_URL" --name "$RUNNER_NAME" --secret "$forgejo_secret"
# Stop the dind container (it is started because it is a dependency of the runner)
RUNNER_UID="$(id -u forgejo-runner)" RUNNER_GID="$(id -g forgejo-runner)" docker compose down
# Update the labels on the runner config
TMP_FILE="$(mktemp)"
jq '.labels |= ["docker:docker://node:22-bookworm"]' "$DATA_DIR/.runner" >"$TMP_FILE"
sudo sh -c "cat '$TMP_FILE' >'$DATA_DIR/.runner'"
rm "$TMP_FILE"
# Print message to register the runner with the secret
cat <<EOF
Runner configuration file created. Please register the runner with the following command:
forgejo forgejo-cli actions register --name "$RUNNER_NAME" --secret "$forgejo_secret"
EOF
}
# ====
# MAIN
# ====
setup_user
setup_data_dir
setup_runner
cat <<EOF
Runner setup complete. You can now start the runner with:
cd "$WORK_DIR"
RUNNER_UID="$(id -u forgejo-runner)" RUNNER_GID="$(id -g forgejo-runner)" docker compose up -d
EOF