add install.sh script to install uncloudd daemon on a machine

2026-08-26 19:13:34 +00:00 · 2024-09-20 15:57:00 +10:00
parent 1a5a78e4b3
commit c103b6ed6d
1 changed files with 158 additions and 0 deletions
@@ -0,0 +1,158 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+INSTALL_BIN_DIR=${INSTALL_BIN_DIR:-/usr/local/bin}
+INSTALL_SYSTEMD_DIR=${INSTALL_SYSTEMD_DIR:-/etc/systemd/system}
+UNCLOUD_GITHUB_URL="https://github.com/psviderski/uncloud"
+UNCLOUD_VERSION=${UNCLOUD_VERSION:-latest}
+
+log() {
+    echo -e "\033[1;32m$1\033[0m" >&2
+}
+
+error() {
+    echo -e "\033[1;31mERROR: $1\033[0m" >&2
+    exit 1
+}
+
+command_exists() {
+    command -v "$1" >/dev/null 2>&1
+}
+
+verify_system() {
+  if [[ "$(uname -s)" != "Linux" ]]; then
+      error "Uncloud machine must be a Linux system. Your system ($(uname -s)) is not supported."
+  fi
+
+  local arch
+  arch=$(uname -m)
+  if [[ "$arch" != "x86_64" && "$arch" != "aarch64" ]]; then
+      error "Uncloud machine must have amd64 (x86_64) or arm64 (aarch64) architecture. \
+Your system architecture ($arch) is not supported."
+  fi
+
+  if [[ ! -d /run/systemd/system ]]; then
+      error "Cannot find systemd to use as a service manager for the Uncloud machine daemon. \
+Uncloud supports only systemd-based Linux systems for now."
+  fi
+}
+
+install_docker() {
+    if command_exists docker; then
+        log "✓ Docker is already installed."
+        docker version
+        return
+    fi
+
+    log "⏳ Installing Docker..."
+    curl -fsSL https://get.docker.com | sh
+    log "✓ Docker installed successfully."
+}
+
+install_uncloud_binaries() {
+    local arch
+    local file_arch
+
+    arch=$(uname -m)
+    case $arch in
+      x86_64)
+        file_arch="amd64"
+        ;;
+      aarch64)
+        file_arch="arm64"
+        ;;
+      *)
+        error "Unsupported architecture: ${arch}"
+        ;;
+    esac
+
+    local uncloudd_install_path="${INSTALL_BIN_DIR}/uncloudd"
+    if [ -f "${uncloudd_install_path}" ]; then
+        log "✓ uncloudd binary is already installed."
+        return
+    fi
+
+    log "⏳ Installing Uncloud binaries..."
+
+    # Create a temporary directory for downloads.
+    local tmp_dir
+    tmp_dir=$(mktemp -d)
+    # Ensure the temporary directory is deleted on script exit.
+    # shellcheck disable=SC2064
+    trap "rm -rf '$tmp_dir'" EXIT
+
+    local uncloudd_url
+    if [ "${UNCLOUD_VERSION}" == "latest" ]; then
+        uncloudd_url="${UNCLOUD_GITHUB_URL}/releases/latest/download/uncloudd-${file_arch}"
+    else
+        uncloudd_url="${UNCLOUD_GITHUB_URL}/releases/download/${UNCLOUD_VERSION}/uncloudd-${file_arch}"
+    fi
+    local uncloudd_download_path="${tmp_dir}/uncloudd"
+
+    if ! curl -fsSL -o "${uncloudd_download_path}" "${uncloudd_url}"; then
+        error "Failed to download uncloudd binary: ${uncloudd_url}"
+    fi
+    if ! install "${uncloudd_download_path}" "${uncloudd_install_path}"; then
+        error "Failed to install uncloud binary to ${uncloudd_install_path}"
+    fi
+    log "✓ uncloudd binary installed to ${uncloudd_install_path}"
+
+    # TODO: install uncloud CLI binary and create a uc alias.
+}
+
+install_uncloud_systemd() {
+    local uncloud_service_path="${INSTALL_SYSTEMD_DIR}/uncloud.service"
+    if [ -f "${uncloud_service_path}" ]; then
+      log "⏳ Updating systemd unit for Uncloud machine daemon..."
+    else
+      log "⏳ Installing systemd unit for Uncloud machine daemon..."
+    fi
+
+    cat << EOF | sudo tee "${INSTALL_SYSTEMD_DIR}/uncloud.service" > /dev/null
+[Unit]
+Description=Uncloud machine daemon
+After=network-online.target
+Wants=network-online.target
+Requires=uncloud.socket
+
+[Service]
+Type=simple
+ExecStart=/usr/local/bin/uncloudd
+Restart=always
+RestartSec=2
+
+# Hardening options.
+ProtectSystem=full
+PrivateTmp=true
+NoNewPrivileges=true
+ProtectHome=true
+ProtectControlGroups=true
+ProtectKernelTunables=true
+RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX AF_NETLINK
+RestrictNamespaces=true
+
+[Install]
+WantedBy=multi-user.target
+EOF
+    log "✓ Systemd unit file created: ${uncloud_service_path}"
+
+    # Reload systemd to recognize the new or updated unit file.
+    systemctl daemon-reload
+    systemctl enable uncloud.service
+    systemctl start uncloud.service
+    log "✓ Uncloud machine daemon started."
+}
+
+log "⏳ Running Uncloud install script..."
+
+if [ "$EUID" -ne 0 ]; then
+    error "Please run the install script with sudo or as root."
+fi
+
+verify_system
+install_docker
+install_uncloud_binaries
+install_uncloud_systemd
+
+log "✓ Uncloud installed successfully! 🎉"