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Document ssl-related command line flags.

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Brandon Bodnar 2019-02-05 08:02:47 -06:00
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doc/command-line-flags.md
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@ -177,6 +177,18 @@ By default `gh-ost` verifies no foreign keys exist on the migrated table. On ser
See [`approve-renamed-columns`](#approve-renamed-columns)
### ssl
By default `gh-ost` does not use ssl/tls connections to the database servers when performing migrations. This flag instructs `gh-ost` to use encrypted connections. If enabled, `gh-ost` will use the system's ca certificate pool for server certificate verification. If a different certificate is needed for server verification, see `--ssl-ca`. If you wish to skip server verification, but still use encrypted connections, use with `--ssl-allow-insecure`.
### ssl-allow-insecure
Allows `gh-ost` to connect to the MySQL servers using encrypted connections, but without verifying the validity of the certificate provided by the server during the connection. Requires `--ssl`.
### ssl-ca
`--ssl-ca=/path/to/ca-cert.pem`: ca certificate file (in PEM format) to use for server certificate verification. If specified, the default system ca cert pool will not be used for verification, only the ca cert provided here. Requires `--ssl`.
### test-on-replica
Issue the migration on a replica; do not modify data on master. Useful for validating, testing and benchmarking. See [`testing-on-replica`](testing-on-replica.md)