add psql

psql/.env.example

@@ -0,0 +1 @@
+VAULT_HOST=vault.domain.com

psql/docker-compose.yaml

@@ -0,0 +1,19 @@
+version: '3.8'
+services:
+  psql:
+    image: psql
+    container_name: psql
+    restart: always
+    environment:
+      POSTGRES_DB: testdb1
+      POSTGRES_USER: root
+      POSTGRES_PASSWORD: pa$$w0rd
+      PGDATA: /var/lib/postgresql/data
+    expose:
+      - 5432
+    networks:
+      - vault_net
+
+networks:
+  vault_net:
+    name: vault_net