clickhouse

misc/tools.func

@@ -1867,3 +1867,59 @@ function setup_ffmpeg() {
   ensure_usr_local_bin_persist
   msg_ok "Setup FFmpeg $FINAL_VERSION"
 }
+
+# ------------------------------------------------------------------------------
+# Installs ClickHouse server and client, sets up DB/user with credentials.
+#
+# Description:
+#   - Adds official ClickHouse APT repo with GPG key
+#   - Installs clickhouse-server and clickhouse-client
+#   - Creates database and user (credentials optionally overrideable via env)
+#
+# Variables:
+#   CLICKHOUSE_DB       - Database name (default: analytics)
+#   CLICKHOUSE_USER     - Username (default: analytics_user)
+#   CLICKHOUSE_PASS     - Password (default: auto-generated)
+# ------------------------------------------------------------------------------
+
+function setup_clickhouse() {
+  local CLICKHOUSE_DB="${CLICKHOUSE_DB:-analytics}"
+  local CLICKHOUSE_USER="${CLICKHOUSE_USER:-analytics_user}"
+  local CLICKHOUSE_PASS="${CLICKHOUSE_PASS:-$(openssl rand -base64 18 | cut -c1-13)}"
+  local GPG_URL="https://packages.clickhouse.com/rpm/lts/repodata/repomd.xml.key"
+  local GPG_KEY_PATH="/usr/share/keyrings/clickhouse-keyring.gpg"
+  local ARCH
+  ARCH=$(dpkg --print-architecture)
+
+  msg_info "Adding ClickHouse repository"
+  if ! getent ahosts packages.clickhouse.com >/dev/null; then
+    msg_error "DNS resolution failed – possibly blocked (AdGuard, Pi-hole)"
+    return 1
+  fi
+
+  if ! curl -fsSL --connect-timeout 10 --retry 3 "$GPG_URL" | gpg --dearmor -o "$GPG_KEY_PATH"; then
+    msg_error "Failed to fetch ClickHouse GPG key"
+    return 1
+  fi
+
+  echo "deb [signed-by=$GPG_KEY_PATH arch=$ARCH] https://packages.clickhouse.com/deb stable main" >/etc/apt/sources.list.d/clickhouse.list
+  $STD apt-get update
+
+  msg_info "Installing ClickHouse"
+  $STD apt-get install -y clickhouse-server clickhouse-client
+  $STD systemctl enable --now clickhouse-server
+  sleep 3
+  msg_ok "Installed ClickHouse"
+
+  msg_info "Creating ClickHouse DB '$CLICKHOUSE_DB' and user '$CLICKHOUSE_USER'"
+  clickhouse client --query "CREATE DATABASE IF NOT EXISTS $CLICKHOUSE_DB"
+  clickhouse client --query "CREATE USER IF NOT EXISTS $CLICKHOUSE_USER IDENTIFIED WITH plaintext_password BY '$CLICKHOUSE_PASS'"
+  clickhouse client --query "GRANT ALL ON $CLICKHOUSE_DB.* TO $CLICKHOUSE_USER"
+  msg_ok "Created DB and user"
+
+  {
+    echo "ClickHouse DB:     $CLICKHOUSE_DB"
+    echo "ClickHouse User:   $CLICKHOUSE_USER"
+    echo "ClickHouse Pass:   $CLICKHOUSE_PASS"
+  } >>~/clickhouse.creds
+}