Updates example vault script

docker-postgres-vault-example.sh

@@ -1,11 +1,12 @@
+#!/usr/bin/env bash
 # https://learn.hashicorp.com/tutorials/vault/database-secrets
 
 docker run \
     --detach \
     --name learn-postgres \
     -e POSTGRES_USER=root \
     -e POSTGRES_PASSWORD=rootpassword \
-    -p 5433:5432 \
+    -p 5434:5432 \
     --rm \
     postgres
 
@@ -17,16 +18,16 @@ docker exec -i \
     learn-postgres \
     psql -U root -c "GRANT SELECT ON ALL TABLES IN SCHEMA public TO \"ro\";"
 
-vault server -dev -dev-root-token-id root -dev-listen-address=127.0.0.1:8201 
-
 export VAULT_ADDR='http://127.0.0.1:8201'
 export VAULT_TOKEN=root
 
+vault server -dev -dev-root-token-id root -dev-listen-address=127.0.0.1:8201 
+
 vault secrets enable database
 
 vault write database/config/postgresql \
      plugin_name=postgresql-database-plugin \
-     connection_url="postgresql://{{username}}:{{password}}@localhost:5433/postgres?sslmode=disable" \
+     connection_url="postgresql://{{username}}:{{password}}@localhost:5434/postgres?sslmode=disable" \
      allowed_roles=readonly \
      username="root" \
      password="rootpassword"
@@ -43,3 +44,13 @@ vault write database/roles/readonly \
       max_ttl=24h
 
 vault read database/creds/readonly
+
+# Connection details:
+# Postgres address: localhost
+# Postgres port: 5434
+# Vault address: http://127.0.0.1:8201
+# Vault secret: database/creds/readonly
+# Vault token: <empty or /home/froque/.vault-token>
+
+
+