Open postgres to listen on the network and enforce protection with a random password

README.md

@@ -58,15 +58,18 @@ pgadmin needs a default credential to login: `admin@nethserver.org` `Nethesis,12
     runagent -m postgresql1
     podman exec -ti postgresql-app psql -U postgres
 
-2. using another terminal, access the database from the host using the postgres uri
+
+2 - access inside the cluster via the network
 
 ```
-psql postgresql://postgres:Nethesis,1234@IP_of_Node:${TCP_PORT_PGSQL}/postgres
+psql -h IP_of_Node -U postgres -d postgres -p ${TCP_PORT_PGSQL}
 ```
 
-`${TCP_PORT_PGSQL} `is set inside the environment of the module
+The password of postgres user can be found inside a secret file `/home/postgresql1/.config/state/secrets/passwords.env`
+
+`${TCP_PORT_PGSQL} `is set inside the environment of the module ans visible in the settings page > advanced menu
 
-`IP_of_Node` is the IP running the container, it might be the internal wiregard IP or the external IP of the node
+`IP_of_Node` is the IP running the container, it must be the internal wiregard IP for example 10.5.4.1, the port is not opened in the firewall
 
 ## Get the configuration
 You can retrieve the configuration with
@@ -113,7 +116,8 @@ on the root terminal
 
     `runagent -m postgresql1`
 
- the path become : 
+ the path becomes:
+
 ```
     echo $PATH
     /home/postgresql1/.config/bin:/usr/local/agent/pyenv/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/usr/
@@ -124,27 +128,41 @@ on the root terminal
  ```
 podman ps
 CONTAINER ID  IMAGE                                      COMMAND               CREATED        STATUS        PORTS                    NAMES
-d292c6ff28e9  localhost/podman-pause:4.6.1-1702418000                          9 minutes ago  Up 9 minutes  127.0.0.1:20015->80/tcp  80b8de25945f-infra
-d8df02bf6f4a  docker.io/library/mariadb:10.11.5          --character-set-s...  9 minutes ago  Up 9 minutes  127.0.0.1:20015->80/tcp  mariadb-app
-9e58e5bd676f  docker.io/library/nginx:stable-alpine3.17  nginx -g daemon o...  9 minutes ago  Up 9 minutes  127.0.0.1:20015->80/tcp  postgresql-app
+e44540b6e758  localhost/podman-pause:4.9.4-rhel-1714526144              6 minutes ago  Up 6 minutes  127.0.0.1:20025->80/tcp, 0.0.0.0:20024->5432/tcp  a3b7a6c1ec0a-infra
+e78d65411183  docker.io/library/postgres:14.12-bookworm     postgres    6 minutes ago  Up 6 minutes  127.0.0.1:20025->80/tcp, 0.0.0.0:20024->5432/tcp  postgresql-app
+6a642dc061e4  docker.io/dpage/pgadmin4:8.6                              6 minutes ago  Up 6 minutes  127.0.0.1:20025->80/tcp, 0.0.0.0:20024->5432/tcp  pgadmin-app
 ```
 
 you can see what environment variable is inside the container
 ```
 podman exec  postgresql-app env
-PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
-TERM=xterm
-PKG_RELEASE=1
-MARIADB_DB_HOST=127.0.0.1
-MARIADB_DB_NAME=postgresql
-MARIADB_IMAGE=docker.io/mariadb:10.11.5
-MARIADB_DB_TYPE=mysql
+PG_MAJOR=14
+POSTGRES_USER=postgres
+TCP_PORT_PGSQL=20040
 container=podman
-NGINX_VERSION=1.24.0
-NJS_VERSION=0.7.12
-MARIADB_DB_USER=postgresql
-MARIADB_DB_PASSWORD=postgresql
-MARIADB_DB_PORT=3306
+PGADMIN4_IMAGE=docker.io/dpage/pgadmin4:8.6
+TRAEFIK_HOST=p3.rocky9-3.org
+TCP_PORT_PGADMIN=20041
+IMAGE_REOPODIGEST=ghcr.io/nethserver/postgresql@sha256:7214285985f1b83a24349b734e492b39d32627a818a71a71e53ad2f611602904
+IMAGE_DIGEST=sha256:7214285985f1b83a24349b734e492b39d32627a818a71a71e53ad2f611602904
+PGDATA=/var/lib/postgresql/data
+TCP_PORTS_RANGE=20040-20041
+GOSU_VERSION=1.17
+TRAEFIK_HTTP2HTTPS=False
+IMAGE_ID=0697feb0d5ae91dd8aeecfd4ec3cc686ed2a24e8b02a875715898dddfe17ab28
+TCP_PORTS=20040,20041
+LANG=en_US.utf8
+MODULE_ID=postgresql3
+NODE_ID=1
+PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/lib/postgresql/14/bin
+IMAGE_URL=ghcr.io/nethserver/postgresql:opennetwork
+TRAEFIK_LETS_ENCRYPT=False
+MODULE_UUID=631248ae-6296-45c9-84d7-a981fb269dc1
+TCP_PORT=20040
+POSTGRES_PASSWORD=d4079c78337e27abd9b200458a46834dbf205218
+POSTGRES_IMAGE=docker.io/postgres:14.12-bookworm
+PG_VERSION=14.12-1.pgdg120+1
+TERM=xterm
 HOME=/root
 ```
 

imageroot/actions/create-module/20create-secrets

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2024 Nethesis S.r.l.
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+
+../bin/create-secrets

imageroot/bin/create-secrets

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2024 Nethesis S.r.l.
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+
+set -e
+
+
+
+if [[ ! -d ~/.config/state/secrets ]]; then
+    /usr/bin/mkdir -p ~/.config/state/secrets
+fi
+
+# restict to 400
+umask 266
+
+if [[ ! -f ~/.config/state/secrets/passwords.env ]]; then
+    password_postgres=$(/usr/bin/openssl rand -hex 20)
+    /usr/bin/echo "POSTGRES_PASSWORD=$password_postgres" > ~/.config/state/secrets/passwords.env
+fi

imageroot/etc/state-include.conf

@@ -5,3 +5,4 @@
 # List here what you want to save during backup : volumes or file Path
 state/postgresql.pg_dump
 volumes/pgadmin-data
+state/secrets/passwords.env

imageroot/state/config_server.json

@@ -5,9 +5,9 @@
             "Group": "Localhost server",
             "Port": 5432,
             "Username": "postgres",
-            "Host": "127.0.0.1",
+            "Host": "/var/run/postgresql/",
             "MaintenanceDB": "postgres",
-            "PassFile": "/pgpassfile"
+            "PassFile": ""
         }
     }
 }

imageroot/systemd/user/pgadmin-app.service

@@ -23,14 +23,13 @@ ExecStart=/usr/bin/podman run --conmon-pidfile %t/pgadmin-app.pid \
     --pod-id-file %t/postgresql.pod-id --replace -d --name  pgadmin-app \
     --volume pgadmin-data:/var/lib/pgadmin:Z \
     --volume ./config_server.json:/pgadmin4/config_server.json:Z \
-    --volume ./pgpassfile:/pgadmin4/pgpassfile:Z \
+    --volume socket:/var/run/postgresql:z \
     --env 'PGADMIN_DEFAULT_EMAIL=admin@nethserver.org' \
     --env 'PGADMIN_DEFAULT_PASSWORD=Nethesis,1234' \
     --env 'PGADMIN_CONFIG_ENHANCED_COOKIE_PROTECTION=True' \
     --env 'PGADMIN_CONFIG_UPGRADE_CHECK_ENABLED=False' \
     --env 'PGADMIN_CONFIG_LOGIN_BANNER="Authorised users only!"' \
     --env 'PGADMIN_CONFIG_CONSOLE_LOG_LEVEL=40' \
-    --env 'PGADMIN_CONFIG_CONFIG_DATABASE_URI="postgresql://postgres:Nethesis,1234@127.0.0.1:5432/postgres"' \
     --env-file=%S/state/smarthost.env \
     ${PGADMIN4_IMAGE}
 ExecStartPost=/usr/bin/bash -c "while ! podman exec pgadmin-app /venv/bin/python3 setup.py get-users ;  do sleep 5 ; done"

imageroot/systemd/user/postgresql-app.service

@@ -11,6 +11,7 @@ After=postgresql.service
 [Service]
 Environment=PODMAN_SYSTEMD_UNIT=%n
 EnvironmentFile=%S/state/environment
+EnvironmentFile=%S/state/secrets/passwords.env
 Restart=always
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/postgresql-app.pid %t/postgresql-app.ctr-id
@@ -19,8 +20,9 @@ ExecStart=/usr/bin/podman run --conmon-pidfile %t/postgresql-app.pid \
     --pod-id-file %t/postgresql.pod-id --replace -d --name postgresql-app \
     --env-file=%S/state/environment \
     --volume pgdata:/var/lib/postgresql/data:Z \
+    --volume socket:/var/run/postgresql:z \
     --env POSTGRES_USER=postgres \
-    --env POSTGRES_PASSWORD=Nethesis,1234 \
+    --env POSTGRES_PASSWORD=${POSTGRES_PASSWORD} \
     ${POSTGRES_IMAGE}
 ExecStop=/usr/bin/podman stop --ignore --cidfile %t/postgresql-app.ctr-id -t 10
 ExecStopPost=/usr/bin/podman rm --ignore -f --cidfile %t/postgresql-app.ctr-id

imageroot/systemd/user/postgresql.service

@@ -23,7 +23,7 @@ ExecStartPre=/usr/bin/podman pod create --infra-conmon-pidfile %t/postgresql.pid
     --pod-id-file %t/postgresql.pod-id \
     --name postgresql \
     --publish 127.0.0.1:${TCP_PORT_PGADMIN}:80 \
-    --publish 127.0.0.1:${TCP_PORT_PGSQL}:5432 \
+    --publish ${TCP_PORT_PGSQL}:5432 \
     --replace
 ExecStart=/usr/bin/podman pod start --pod-id-file %t/postgresql.pod-id
 ExecStop=/usr/bin/podman pod stop --ignore --pod-id-file %t/postgresql.pod-id -t 10

imageroot/update-module.d/10upgrade-to-private-secrets

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2024 Nethesis S.r.l.
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+
+# If the control reaches this step, the service can be enabled and started
+
+set -e
+
+# Redirect any output to the journal (stderr)
+exec 1>&2
+
+# we want to migrate from 1.0.5 when the postgres password was default and no secrets were created
+
+if [[ ! -f ~/.config/state/secrets/passwords.env ]]; then
+    ../bin/create-secrets
+    source ~/.config/state/secrets/passwords.env
+    # change the password of the postgres user
+    podman exec -ti postgresql-app sh -c "PGPASSWORD=${POSTGRES_PASSWORD} psql -U postgres -d postgres -c \"ALTER USER postgres WITH PASSWORD '${POSTGRES_PASSWORD}';\""
+fi