cf-mysql/29

You can find the source of this version on GitHub at cloudfoundry/cf-mysql-release. It was created based on the commit c69bdeac.

Release Notes¶

Security Update

While performing an upgrade, the team discovered a security issue, CVE-2016-6653. This affects cf-mysql releases v27 and v28.

In the case where either has been deployed, and the following three conditions are true: - Configured to send logs to a syslog service - Syslog transport is not encrypted - Audit logging is enabled

… then, cf-mysql will mistakenly send those audit logs to to the syslog service without encryption.

Especially in the case where the query directive has been specified in the cf_mysql.mysql.server_audit_events property, this can transmit all application data in a way that is not protected from network observers.

Furthermore, in this configuration, BOSH will not be able to automatically upgrade, see below.

Bug Fixes

Do not send the mysql audit logs to syslog [#131120795]
Detaching the persistent disk failed when both syslog and audit logs were enabled [#131023259]

Upgrading from cf-mysql v27 or v28

If upgrading from v27 or v28, if both cf_mysql.mysql.server_audit_events property and syslog_aggregator had been configured, you may encounter problems when bosh tries to detach the persistent disk from the MySQL VMs. This will look like the following:

Started updating job mysql_z1 > mysql_z1/0 (55170f29-1796-48ef-ac48-abb325eec1a8) (canary). Failed: Action Failed get_task: Task 462ff34b-78ed-4d16-5ce9-fd707a45e9f1 result: Migrating persistent disk: Remounting persistent disk as readonly: Unmounting /var/vcap/store: Running command: ‘umount /var/vcap/store’, stdout: “, stderr: ‘umount: /var/vcap/store: device is busy.

(In some cases useful info about processes that use the device is found by lsof(8) or fuser(1))

The problem can be resolved by: 1. Ssh onto the MySQL VMs, using your preferred method 1. Comment out lines 44-48 of /etc/rsyslog.d/00-syslog_forwarder.conf 1. kill the rsyslogd process 1. Run bosh deploy again; it should succeed this time

Features

In typical agile fashion, we had completed a few feature stories, so they’re included as well. - galera_healthcheck should log when it encounters a bad state or error discovering state [#128880727] - The galera_healthcheck job now logs more verbosely when it encounters problems. - switchboard proxy should provide an HTTP healthcheck [#130696613] - This allows the cluster to work with Load Balancers that use only HTTP health checks. - The health check port should continue to work with load balancers that use TCP health checks.

Usage¶

You can reference this release in your deployment manifest from the releases section:

- name: "cf-mysql"
  version: "29"
  url: "https://bosh.io/d/github.com/cloudfoundry/cf-mysql-release?v=29"
  sha1: "c335d01d83b83a17dfd8713f1b1e83e28d4bd02a"

Or upload it to your director with the upload-release command:

bosh upload-release --sha1 c335d01d83b83a17dfd8713f1b1e83e28d4bd02a \
  "https://bosh.io/d/github.com/cloudfoundry/cf-mysql-release?v=29"