我們如何將Corda連接到Azure PostgreSQL？

Question

我正在嘗試將Corda 4.1（開源）連接到Azure PostgreSQL。

在node.conf中包含以下內容：

dataSourceProperties = {
    dataSourceClassName = "org.postgresql.ds.PGSimpleDataSource"
    dataSource.url = "jdbc:postgresql://my-dev-corda-db.postgres.database.azure.com:5432/banks"
    dataSource.user = "me@my-dev-corda-db"
    dataSource.password = Password
}

它引發錯誤：

[ERROR] 2019-08-08T23:44:45,301Z [main] internal.NodeStartupLogging.invoke - Could not connect to the database. Please check your JDBC connection URL, or the connectivity to the database.: Could not connect to the
database. Please check your JDBC connection URL, or the connectivity to the database. [errorCode=uz1y94, moreInformationAt=https://errors.corda.net/OS/4.1/uz1y94]
net.corda.nodeapi.internal.persistence.CouldNotCreateDataSourceException: Could not connect to the database. Please check your JDBC connection URL, or the connectivity to the database.
....
....
Suppressed: org.postgresql.util.PSQLException: FATAL: SSL connection is required. Please specify SSL options and retry.
...

因此，我在網址中添加了ssl=true ：

dataSource.url = "jdbc:postgresql://my-dev-corda-db.postgres.database.azure.com:5432/banks?ssl=true"

並引發錯誤：

[ERROR] 2019-08-08T23:49:45,409Z [main] internal.NodeStartupLogging.invoke - Could not connect to the database. Please check your JDBC connection URL, or the connectivity to the database.: Could not connect to the
database. Please check your JDBC connection URL, or the connectivity to the database. [errorCode=17q5mal, moreInformationAt=https://errors.corda.net/OS/4.1/17q5mal]
net.corda.nodeapi.internal.persistence.CouldNotCreateDataSourceException: Could not connect to the database. Please check your JDBC connection URL, or the connectivity to the database.
...
...
Caused by: com.zaxxer.hikari.pool.HikariPool$PoolInitializationException: Failed to initialize pool: Could not open SSL root certificate file /home/corda/.postgresql/root.crt.
...
Caused by: org.postgresql.util.PSQLException: Could not open SSL root certificate file /home/corda/.postgresql/root.crt.
...

然后，我嘗試設置sslmode=require ：

dataSource.url = "jdbc:postgresql://my-dev-corda-db.postgres.database.azure.com:5432/banks?ssl=true&sslmode=require"

然后出現以下錯誤：

[ERROR] 2019-08-08T23:53:38,323Z [main] internal.NodeStartupLogging.invoke - Could not connect to the database. Please check your JDBC connection URL, or the connectivity to the database.: Could not connect to the
database. Please check your JDBC connection URL, or the connectivity to the database. [errorCode=uz1y94, moreInformationAt=https://errors.corda.net/OS/4.1/uz1y94]
net.corda.nodeapi.internal.persistence.CouldNotCreateDataSourceException: Could not connect to the database. Please check your JDBC connection URL, or the connectivity to the database.
...
...
Caused by: com.zaxxer.hikari.pool.HikariPool$PoolInitializationException: Failed to initialize pool: FATAL: no pg_hba.conf entry for host "57.211.24.3", user "me", database "banks", SSL on
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:512) ~[HikariCP-2.5.1.jar:?]
...
Caused by: org.postgresql.util.PSQLException: FATAL: no pg_hba.conf entry for host "57.211.24.3", user "me", database "banks", SSL on
...

將Azure PostgreSQL與Corda一起使用的完整正確步驟是什么？

Answer 1

從Internet連接到Azure PostgreSQL時，需要在服務器的防火牆中啟用IP，請參閱： https : //docs.microsoft.com/zh-cn/azure/postgresql/concepts-firewall-rules#connecting-from-the -互聯網 。

您可以簡單地從Azure門戶進行操作-轉到“ Connection Security並Add Client IP （如果您沒有靜態IP，則需要每次重復一次）。

對於JDBC連接設置，僅?sslmode=require ，因此在您的節點配置中使用：

dataSource.url = "jdbc:postgresql://my-dev-corda-db.postgres.database.azure.com:5432/banks?sslmode=require"