adds DATABASE_SSL_KEY_BASE64 for pg connection

DATABASE_SSL_KEY_BASE64 takes priority over DATABASE_SSL env var

If neither are provided, no ssl value will be used.
This allows for the usage of PGSSLMODE

packages/server/.env.example

@@ -13,6 +13,7 @@ PORT=3000
 # DATABASE_USER=""
 # DATABASE_PASSWORD=""
 # DATABASE_SSL=true
+# DATABASE_SSL_KEY_BASE64=<Self signed certificate in BASE64>
 
 # FLOWISE_USERNAME=user
 # FLOWISE_PASSWORD=1234

packages/server/src/DataSource.ts

@@ -46,7 +46,18 @@ export const init = async (): Promise<void> => {
                 username: process.env.DATABASE_USER,
                 password: process.env.DATABASE_PASSWORD,
                 database: process.env.DATABASE_NAME,
-                ssl: process.env.DATABASE_SSL === 'true',
+                ...(process.env.DATABASE_SSL_KEY_BASE64
+                    ? {
+                          ssl: {
+                              rejectUnauthorized: false,
+                              cert: Buffer.from(process.env.DATABASE_SSL_KEY_BASE64, 'base64')
+                          }
+                      }
+                    : process.env.DATABASE_SSL === 'true'
+                    ? {
+                          ssl: true
+                      }
+                    : {}),
                 synchronize: false,
                 migrationsRun: false,
                 entities: Object.values(entities),

packages/server/src/commands/start.ts

@@ -36,6 +36,7 @@ export default class Start extends Command {
         DATABASE_USER: Flags.string(),
         DATABASE_PASSWORD: Flags.string(),
         DATABASE_SSL: Flags.string(),
+        DATABASE_SSL_KEY_BASE64: Flags.string(),
         LANGCHAIN_TRACING_V2: Flags.string(),
         LANGCHAIN_ENDPOINT: Flags.string(),
         LANGCHAIN_API_KEY: Flags.string(),
@@ -107,6 +108,7 @@ export default class Start extends Command {
         if (flags.DATABASE_USER) process.env.DATABASE_USER = flags.DATABASE_USER
         if (flags.DATABASE_PASSWORD) process.env.DATABASE_PASSWORD = flags.DATABASE_PASSWORD
         if (flags.DATABASE_SSL) process.env.DATABASE_SSL = flags.DATABASE_SSL
+        if (flags.DATABASE_SSL_KEY_BASE64) process.env.DATABASE_SSL_KEY_BASE64 = flags.DATABASE_SSL_KEY_BASE64
 
         // Langsmith tracing
         if (flags.LANGCHAIN_TRACING_V2) process.env.LANGCHAIN_TRACING_V2 = flags.LANGCHAIN_TRACING_V2