PostgreSQL Server Exporter

PostgreSQL Server Exporter 允许您导出各种 PostgreSQL 指标。

对于从源安装实例，您必须自己安装和配置它。

要启用 PostgreSQL Server Exporter：

  1. 启用 Prometheus。

  2. 编辑 /etc/gitlab/gitlab.rb 并启用 postgres_exporter： 

    postgres_exporter['enable'] = true

    如果 PostgreSQL Server Exporter 配置在单独的节点上，请确保本地地址列在 trust_auth_cidr_addresses 中，否则 Exporter 无法连接到数据库。

  3. 保存文件并重新配置极狐GitLab，使更改生效。

Prometheus 开始从 localhost:9187 下暴露的 PostgreSQL Server Exporter 收集性能数据。

高级配置

在大多数情况下，PostgreSQL Server Exporter 使用默认值，您不需要更改任何内容。要进一步自定义，请使用以下配置选项：

  1. 编辑 /etc/gitlab/gitlab.rb： 

    # The name of the database to connect to.
postgres_exporter['dbname'] = 'pgbouncer'
# The user to sign in as.
postgres_exporter['user'] = 'gitlab-psql'
# The user's password.
postgres_exporter['password'] = ''
# The host to connect to. Values that start with '/' are for unix domain sockets
# (default is 'localhost').
postgres_exporter['host'] = 'localhost'
# The port to bind to (default is '5432').
postgres_exporter['port'] = 5432
# Whether or not to use SSL. Valid options are:
#   'disable' (no SSL),
#   'require' (always use SSL and skip verification, this is the default value),
#   'verify-ca' (always use SSL and verify that the certificate presented by
#   the server was signed by a trusted CA),
#   'verify-full' (always use SSL and verify that the certification presented
#   by the server was signed by a trusted CA and the server host name matches
#   the one in the certificate).
postgres_exporter['sslmode'] = 'require'
# An application_name to fall back to if one isn't provided.
postgres_exporter['fallback_application_name'] = ''
# Maximum wait for connection, in seconds. Zero or not specified means wait indefinitely.
postgres_exporter['connect_timeout'] = ''
# Cert file location. The file must contain PEM encoded data.
postgres_exporter['sslcert'] = 'ssl.crt'
# Key file location. The file must contain PEM encoded data.
postgres_exporter['sslkey'] = 'ssl.key'
# The location of the root certificate file. The file must contain PEM encoded data.
postgres_exporter['sslrootcert'] = 'ssl-root.crt'

  2. 保存文件并重新配置极狐GitLab，使更改生效。