Add Postgres installer

2026-04-04 19:58:18 +00:00 · 2023-04-08 23:09:19 +07:00
parent f6a80c54f8
commit c3a4eeadd9
6 changed files with 402 additions and 70 deletions
--- a/scripts/remove_postgres.sh
+++ b/scripts/remove_postgres.sh
@@ -0,0 +1,130 @@
+#!/usr/bin/env bash
+
+# PostgreSQL server uninstaller
+# Min. Requirement  : GNU/Linux Ubuntu 18.04
+# Last Build        : 08/04/2023
+# Author            : MasEDI.Net (me@masedi.net)
+# Since Version     : 2.6.6
+
+# Include helper functions.
+if [[ "$(type -t run)" != "function" ]]; then
+    BASE_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )
+    # shellcheck disable=SC1091
+    . "${BASE_DIR}/utils.sh"
+
+    # Make sure only root can run this installer script.
+    requires_root "$@"
+
+    # Make sure only supported distribution can run this installer script.
+    preflight_system_check
+fi
+
+function postgres_remove_config() {
+    local POSTGRES_VERSION=${POSTGRES_VERSION:-"15"}
+    local PGDATA=${POSTGRES_PGDATA:-"/var/lib/postgresql/data"}
+
+    # Remove PostgreSQL server config files.
+    echo "Removing PostgreSQL configuration..."
+    warning "!! This action is not reversible !!"
+
+    if [[ "${AUTO_REMOVE}" == true ]]; then
+        if [[ "${FORCE_REMOVE}" == true ]]; then
+            REMOVE_POSTGRES_CONFIG="y"
+        else
+            REMOVE_POSTGRES_CONFIG="n"
+        fi
+    else
+        while [[ "${REMOVE_POSTGRES_CONFIG}" != "y" && "${REMOVE_POSTGRES_CONFIG}" != "n" ]]; do
+            read -rp "Remove PostgreSQL database and configuration files? [y/n]: " -e REMOVE_POSTGRES_CONFIG
+        done
+    fi
+
+    if [[ "${REMOVE_POSTGRES_CONFIG}" == y* || "${REMOVE_POSTGRES_CONFIG}" == Y* ]]; then
+        [ -d /var/lib/postgresql ] && run rm -fr /var/lib/postgresql
+        [ -d /var/run/postgresql ] && run rm -fr /var/run/postgresql
+        [ -d "${PGDATA}" ] && run rm -fr "${PGDATA}"
+        [ -d "/etc/postgresql/${POSTGRES_VERSION}" ] && run rm -fr "/etc/postgresql/${POSTGRES_VERSION}"
+
+        echo "All database and configuration files deleted permanently."
+    fi
+}
+
+function init_postgres_removal() {
+    local POSTGRES_VERSION=${POSTGRES_VERSION:-"15"}
+    local POSTGRES_USER=${POSTGRES_USER:-"postgres"}
+    local POSTGRES_PKGS=()
+
+    # Stop PostgreSQL mysql server process.
+    if [[ $(pgrep -c postgres) -gt 0 ]]; then
+        echo "Stopping postgres..."
+        run systemctl stop "postgresql@${POSTGRES_VERSION}-main.service"
+    fi
+
+    #run systemctl disable "postgresql@${POSTGRES_VERSION}-main.service"
+
+    if dpkg-query -l | awk '/postgresql/ { print $2 }' | grep -qwE "^postgresql"; then
+        echo "Found PostgreSQL ${POSTGRES_VERSION} packages installation, removing..."
+
+        # Installed Postgres packages.
+        if [[ "${POSTGRES_VERSION}" == "latest" || "${POSTGRES_VERSION}" == "stable" ]]; then
+            POSTGRES_PKGS+=("postgresql" "postgresql-client" "postgresql-client-common" "postgresql-common")
+        else
+            POSTGRES_PKGS+=("postgresql-${POSTGRES_VERSION}" "postgresql-client-${POSTGRES_VERSION}" \
+                "postgresql-client-common" "postgresql-common")
+        fi
+
+        # Remove PostgreSQL server.
+        run apt-get --purge remove -q -y "${POSTGRES_PKGS[@]}"
+
+        # Remove PostgreSQL default user.
+        if [[ -n $(getent passwd "${POSTGRES_USER}") ]]; then
+            run userdel -r "${POSTGRES_USER}"
+        fi
+
+        if [[ -n $(getent group "${POSTGRES_USER}") ]]; then
+            run groupdel "${POSTGRES_USER}"
+        fi
+
+        # Remove config.
+        postgres_remove_config
+
+        # Remove repository.
+        if [[ "${FORCE_REMOVE}" == true ]]; then
+            run rm -f "/etc/apt/sources.list.d/postgres-${RELEASE_NAME}.list"
+        fi
+    else
+        echo "No installed PostgreSQL ${POSTGRES_VERSION} or MySQL packages found."
+        echo "Possibly installed from source? Remove it manually!"
+    fi
+
+    # Final test.
+    if [[ "${DRYRUN}" != true ]]; then
+        if [[ $(pgrep -c postgres) -eq 0 ]]; then
+            success "PostgreSQL server removed."
+        else
+            info "PostgreSQL server not removed."
+        fi
+    else
+        info "PostgreSQL server removed in dry run mode."
+    fi
+}
+
+echo "Uninstalling PostgreSQL server..."
+
+if [[ -n $(command -v psql) ]]; then
+    if [[ "${AUTO_REMOVE}" == true ]]; then
+        REMOVE_POSTGRES="y"
+    else
+        while [[ "${REMOVE_POSTGRES}" != "y" && "${REMOVE_POSTGRES}" != "n" ]]; do
+            read -rp "Are you sure to remove PostgreSQL server? [y/n]: " -e REMOVE_POSTGRES
+        done
+    fi
+
+    if [[ "${REMOVE_POSTGRES}" == y* || "${REMOVE_POSTGRES}" == Y* ]]; then
+        init_postgres_removal "$@"
+    else
+        echo "Found PostgreSQL server, but not removed."
+    fi
+else
+    info "Oops, PostgreSQL server installation not found."
+fi