目录
输入和输出集成概述
Docker 输入插件允许您使用 Docker Engine API 从 Docker 容器收集指标,从而增强容器化应用程序的可视性和监控。
此插件使用参数化的 SQL INSERT 语句将 Telegraf 的指标直接写入 MariaDB,提供了一种将指标存储在结构化关系表中的灵活方式。
集成详情
Docker
Telegraf 的 Docker 输入插件从 Docker Engine API 收集有价值的指标,从而深入了解正在运行的容器。此插件利用官方 Docker 客户端与 Engine API 交互,允许用户监控各种容器状态、资源分配和性能指标。通过按名称和状态筛选容器的选项,以及可自定义的标签,此插件支持在各种环境中灵活监控容器化应用程序,无论是在本地系统上还是在 Kubernetes 等编排平台中。此外,它还通过要求访问 Docker 守护进程的权限来解决安全问题,并强调在容器化环境中部署时的正确配置。
MariaDB
Telegraf 中的 SQL 输出插件可以通过执行参数化的 SQL 语句将指标直接写入与 SQL 兼容的数据库(如 MariaDB)。通过支持 MySQL 驱动程序,该插件与 MariaDB 无缝集成,以实现可靠的结构化指标存储。此设置非常适合喜欢基于 SQL 的分析或希望将指标与业务数据一起存储以进行统一查询的用户。MariaDB 是 MySQL 的一个社区开发的、企业级的分支,强调性能、安全性和开放性。该插件支持将时序指标插入自定义模式,从而可以使用 SQL 连接器灵活地进行分析并与 Metabase 或 Grafana 等 BI 工具集成。
配置
Docker
[[inputs.docker]]
## Docker Endpoint
## To use TCP, set endpoint = "tcp://[ip]:[port]"
## To use environment variables (ie, docker-machine), set endpoint = "ENV"
endpoint = "unix:///var/run/docker.sock"
## Set to true to collect Swarm metrics(desired_replicas, running_replicas)
## Note: configure this in one of the manager nodes in a Swarm cluster.
## configuring in multiple Swarm managers results in duplication of metrics.
gather_services = false
## Only collect metrics for these containers. Values will be appended to
## container_name_include.
## Deprecated (1.4.0), use container_name_include
container_names = []
## Set the source tag for the metrics to the container ID hostname, eg first 12 chars
source_tag = false
## Containers to include and exclude. Collect all if empty. Globs accepted.
container_name_include = []
container_name_exclude = []
## Container states to include and exclude. Globs accepted.
## When empty only containers in the "running" state will be captured.
# container_state_include = []
# container_state_exclude = []
## Objects to include for disk usage query
## Allowed values are "container", "image", "volume"
## When empty disk usage is excluded
storage_objects = []
## Timeout for docker list, info, and stats commands
timeout = "5s"
## Whether to report for each container per-device blkio (8:0, 8:1...),
## network (eth0, eth1, ...) and cpu (cpu0, cpu1, ...) stats or not.
## Usage of this setting is discouraged since it will be deprecated in favor of 'perdevice_include'.
## Default value is 'true' for backwards compatibility, please set it to 'false' so that 'perdevice_include' setting
## is honored.
perdevice = true
## Specifies for which classes a per-device metric should be issued
## Possible values are 'cpu' (cpu0, cpu1, ...), 'blkio' (8:0, 8:1, ...) and 'network' (eth0, eth1, ...)
## Please note that this setting has no effect if 'perdevice' is set to 'true'
# perdevice_include = ["cpu"]
## Whether to report for each container total blkio and network stats or not.
## Usage of this setting is discouraged since it will be deprecated in favor of 'total_include'.
## Default value is 'false' for backwards compatibility, please set it to 'true' so that 'total_include' setting
## is honored.
total = false
## Specifies for which classes a total metric should be issued. Total is an aggregated of the 'perdevice' values.
## Possible values are 'cpu', 'blkio' and 'network'
## Total 'cpu' is reported directly by Docker daemon, and 'network' and 'blkio' totals are aggregated by this plugin.
## Please note that this setting has no effect if 'total' is set to 'false'
# total_include = ["cpu", "blkio", "network"]
## docker labels to include and exclude as tags. Globs accepted.
## Note that an empty array for both will include all labels as tags
docker_label_include = []
docker_label_exclude = []
## Which environment variables should we use as a tag
tag_env = ["JAVA_HOME", "HEAP_SIZE"]
## Optional TLS Config
# tls_ca = "/etc/telegraf/ca.pem"
# tls_cert = "/etc/telegraf/cert.pem"
# tls_key = "/etc/telegraf/key.pem"
## Use TLS but skip chain & host verification
# insecure_skip_verify = false
MariaDB
[[outputs.sql]]
## Database driver
## Valid options: mssql (Microsoft SQL Server), mysql (MySQL), pgx (Postgres),
## sqlite (SQLite3), snowflake (snowflake.com) clickhouse (ClickHouse)
driver = "mysql"
## Data source name
## The format of the data source name is different for each database driver.
## See the plugin readme for details.
data_source_name = "username:password@tcp(host:port)/dbname"
## Timestamp column name
timestamp_column = "timestamp"
## Table creation template
## Available template variables:
## {TABLE} - table name as a quoted identifier
## {TABLELITERAL} - table name as a quoted string literal
## {COLUMNS} - column definitions (list of quoted identifiers and types)
table_template = "CREATE TABLE {TABLE}({COLUMNS})"
## SQL INSERT statement with placeholders. Telegraf will substitute values at runtime.
## table_template = "INSERT INTO metrics (timestamp, name, value, tags) VALUES (?, ?, ?, ?)"
## Table existence check template
## Available template variables:
## {TABLE} - tablename as a quoted identifier
table_exists_template = "SELECT 1 FROM {TABLE} LIMIT 1"
## Initialization SQL
init_sql = "SET sql_mode='ANSI_QUOTES';"
## Maximum amount of time a connection may be idle. "0s" means connections are
## never closed due to idle time.
connection_max_idle_time = "0s"
## Maximum amount of time a connection may be reused. "0s" means connections
## are never closed due to age.
connection_max_lifetime = "0s"
## Maximum number of connections in the idle connection pool. 0 means unlimited.
connection_max_idle = 2
## Maximum number of open connections to the database. 0 means unlimited.
connection_max_open = 0
## NOTE: Due to the way TOML is parsed, tables must be at the END of the
## plugin definition, otherwise additional config options are read as part of the
## table
## Metric type to SQL type conversion
## The values on the left are the data types Telegraf has and the values on
## the right are the data types Telegraf will use when sending to a database.
##
## The database values used must be data types the destination database
## understands. It is up to the user to ensure that the selected data type is
## available in the database they are using. Refer to your database
## documentation for what data types are available and supported.
#[outputs.sql.convert]
# integer = "INT"
# real = "DOUBLE"
# text = "TEXT"
# timestamp = "TIMESTAMP"
# defaultvalue = "TEXT"
# unsigned = "UNSIGNED"
# bool = "BOOL"
# ## This setting controls the behavior of the unsigned value. By default the
# ## setting will take the integer value and append the unsigned value to it. The other
# ## option is "literal", which will use the actual value the user provides to
# ## the unsigned option. This is useful for a database like ClickHouse where
# ## the unsigned value should use a value like "uint64".
# # conversion_style = "unsigned_suffix"
输入和输出集成示例
Docker
-
监控容器化应用程序的性能:使用 Docker 输入插件来跟踪在 Docker 容器中运行的应用程序的 CPU、内存、磁盘 I/O 和网络活动。通过收集这些指标,DevOps 团队可以主动管理资源分配、排除性能瓶颈,并确保跨不同环境的最佳应用程序性能。
-
与 Kubernetes 集成:利用此插件从 Kubernetes 编排的 Docker 容器收集指标。通过滤除不必要的 Kubernetes 标签并专注于关键指标,团队可以简化其监控解决方案并创建仪表板,从而深入了解在 Kubernetes 集群中运行的微服务的整体健康状况。
-
容量规划和资源优化:使用 Docker 输入插件收集的指标来执行 Docker 部署的容量规划。分析使用模式有助于识别未充分利用的资源和过度配置的容器,从而指导基于实际使用趋势的向上或向下扩展决策。
-
容器异常的自动警报:根据通过 Docker 插件收集的指标设置警报规则,以通知团队资源使用量或服务中断的异常峰值。这种主动监控方法有助于维护服务可靠性并优化容器化应用程序的性能。
MariaDB
-
商业智能集成:将应用程序性能指标直接存储到 MariaDB 中,并将其连接到 Metabase 或 Apache Superset 等 BI 工具。此设置允许将运营数据与业务 KPI 混合用于统一仪表板,从而提高跨部门的可见性。
-
具有历史指标的合规性报告:使用此插件将指标记录到 MariaDB 中,用于审计和合规性用例。关系模型可以精确查询带有时间戳条目的过去性能指标,从而支持监管文档。
-
基于 SQL 逻辑的自定义警报:将指标插入 MariaDB 并使用自定义 SQL 查询来定义警报阈值或条件。与 cron 作业或计划脚本结合使用,这可以实现传统指标平台无法实现的高级警报工作流程。
-
物联网传感器指标存储:通过 Telegraf 从物联网设备收集传感器数据,并使用规范化模式将其存储在 MariaDB 中。这种方法具有成本效益,并且可以与现有的基于 SQL 的系统很好地集成,用于实时或历史分析。
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