Áú»¢¶Ä²©

Docker

Docker

Docker is a set of platform as a service products that uses OS-level virtualization to deliver software in packages called containers.

Available solutions




This template is for Áú»¢¶Ä²© version: 7.2

Source:

Docker by Áú»¢¶Ä²© agent 2

Overview

The template to monitor Docker engine by Áú»¢¶Ä²© that work without any external scripts. Most of the metrics are collected in one go, thanks to Áú»¢¶Ä²© bulk data collection.

Template Docker by Áú»¢¶Ä²© agent 2 ¡ª collects metrics by polling zabbix-agent2.

Requirements

Áú»¢¶Ä²© version: 7.2 and higher.

Tested versions

This template has been tested on:

  • Docker 23.0.3

Configuration

Áú»¢¶Ä²© should be configured according to the instructions in the Templates out of the box section.

Setup

Setup and configure Áú»¢¶Ä²© agent 2 compiled with the Docker monitoring plugin. The user by which the Áú»¢¶Ä²© agent 2 is running should have access permissions to the Docker socket.

Test availability: zabbix_get -s docker-host -k docker.info

Macros used

Name Description Default
{$DOCKER.LLD.FILTER.CONTAINER.MATCHES}

Filter of discoverable containers.

 .*
{$DOCKER.LLD.FILTER.CONTAINER.NOT_MATCHES}

Filter to exclude discovered containers.

 CHANGE_IF_NEEDED
{$DOCKER.LLD.FILTER.IMAGE.MATCHES}

Filter of discoverable images.

 .*
{$DOCKER.LLD.FILTER.IMAGE.NOT_MATCHES}

Filter to exclude discovered images.

 CHANGE_IF_NEEDED

Items

Name Description Type Key and additional info
Ping Áú»¢¶Ä²© agent docker.ping

Preprocessing

  • Discard unchanged with heartbeat: 10m
Get info Áú»¢¶Ä²© agent docker.info
Get containers Áú»¢¶Ä²© agent docker.containers
Get images Áú»¢¶Ä²© agent docker.images
Get data_usage Áú»¢¶Ä²© agent docker.data_usage
Containers total

Total number of containers on this host.

 Dependent item docker.containers.total

Preprocessing

  • JSON Path: $.Containers
Containers running

Total number of containers running on this host.

 Dependent item docker.containers.running

Preprocessing

  • JSON Path: $.ContainersRunning
Containers stopped

Total number of containers stopped on this host.

 Dependent item docker.containers.stopped

Preprocessing

  • JSON Path: $.ContainersStopped
Containers paused

Total number of containers paused on this host.

 Dependent item docker.containers.paused

Preprocessing

  • JSON Path: $.ContainersPaused
Images total

Number of images with intermediate image layers.

 Dependent item docker.images.total

Preprocessing

  • JSON Path: $.Images
Storage driver

Docker storage driver.

https://docs.docker.com/storage/storagedriver/

 Dependent item docker.driver

Preprocessing

  • JSON Path: $.Driver

  • Discard unchanged with heartbeat: 1d
Memory limit enabled Dependent item docker.mem_limit.enabled

Preprocessing

  • JSON Path: $.MemoryLimit

  • Boolean to decimal

  • Discard unchanged with heartbeat: 1d
Swap limit enabled Dependent item docker.swap_limit.enabled

Preprocessing

  • JSON Path: $.SwapLimit

  • Boolean to decimal

  • Discard unchanged with heartbeat: 1d
Kernel memory enabled Dependent item docker.kernel_mem.enabled

Preprocessing

  • JSON Path: $.KernelMemory

  • Boolean to decimal

  • Discard unchanged with heartbeat: 1d
Kernel memory TCP enabled Dependent item docker.kernel_mem_tcp.enabled

Preprocessing

  • JSON Path: $.KernelMemoryTCP

  • Boolean to decimal

  • Discard unchanged with heartbeat: 1d
CPU CFS Period enabled

https://docs.docker.com/config/containers/resource_constraints/#configure-the-default-cfs-scheduler

 Dependent item docker.cpu_cfs_period.enabled

Preprocessing

  • JSON Path: $.CpuCfsPeriod

  • Boolean to decimal

  • Discard unchanged with heartbeat: 1d
CPU CFS Quota enabled

https://docs.docker.com/config/containers/resource_constraints/#configure-the-default-cfs-scheduler

 Dependent item docker.cpu_cfs_quota.enabled

Preprocessing

  • JSON Path: $.CpuCfsQuota

  • Boolean to decimal

  • Discard unchanged with heartbeat: 1d
CPU Shares enabled

https://docs.docker.com/config/containers/resource_constraints/#configure-the-default-cfs-scheduler

 Dependent item docker.cpu_shares.enabled

Preprocessing

  • JSON Path: $.CPUShares

  • Boolean to decimal

  • Discard unchanged with heartbeat: 1d
CPU Set enabled

https://docs.docker.com/config/containers/resource_constraints/#configure-the-default-cfs-scheduler

 Dependent item docker.cpu_set.enabled

Preprocessing

  • JSON Path: $.CPUSet

  • Boolean to decimal

  • Discard unchanged with heartbeat: 1d
Pids limit enabled Dependent item docker.pids_limit.enabled

Preprocessing

  • JSON Path: $.PidsLimit

  • Boolean to decimal

  • Discard unchanged with heartbeat: 1d
IPv4 Forwarding enabled Dependent item docker.ipv4_forwarding.enabled

Preprocessing

  • JSON Path: $.IPv4Forwarding

  • Boolean to decimal

  • Discard unchanged with heartbeat: 1d
Debug enabled Dependent item docker.debug.enabled

Preprocessing

  • JSON Path: $.Debug

  • Boolean to decimal

  • Discard unchanged with heartbeat: 1d
Nfd

Number of used File Descriptors.

 Dependent item docker.nfd

Preprocessing

  • JSON Path: $.NFd
OomKill disabled Dependent item docker.oomkill.disabled

Preprocessing

  • JSON Path: $.OomKillDisable

  • Boolean to decimal

  • Discard unchanged with heartbeat: 1d
Goroutines

Number of goroutines.

 Dependent item docker.goroutines

Preprocessing

  • JSON Path: $.NGoroutines
Logging driver Dependent item docker.logging_driver

Preprocessing

  • JSON Path: $.LoggingDriver

  • Discard unchanged with heartbeat: 1d
Cgroup driver Dependent item docker.cgroup_driver

Preprocessing

  • JSON Path: $.CgroupDriver

  • Discard unchanged with heartbeat: 1d
NEvents listener Dependent item docker.nevents_listener

Preprocessing

  • JSON Path: $.NEventsListener
Kernel version Dependent item docker.kernel_version

Preprocessing

  • JSON Path: $.KernelVersion

  • Discard unchanged with heartbeat: 1d
Operating system Dependent item docker.operating_system

Preprocessing

  • JSON Path: $.OperatingSystem

  • Discard unchanged with heartbeat: 1d
OS type Dependent item docker.os_type

Preprocessing

  • JSON Path: $.OSType

  • Discard unchanged with heartbeat: 1d
Architecture Dependent item docker.architecture

Preprocessing

  • JSON Path: $.Architecture

  • Discard unchanged with heartbeat: 1d
NCPU Dependent item docker.ncpu

Preprocessing

  • JSON Path: $.NCPU
Memory total Dependent item docker.mem.total

Preprocessing

  • JSON Path: $.MemTotal
Docker root dir Dependent item docker.root_dir

Preprocessing

  • JSON Path: $.DockerRootDir

  • Discard unchanged with heartbeat: 1d
Name Dependent item docker.name

Preprocessing

  • JSON Path: $.Name
Server version Dependent item docker.server_version

Preprocessing

  • JSON Path: $.ServerVersion

  • Discard unchanged with heartbeat: 1d
Default runtime Dependent item docker.default_runtime

Preprocessing

  • JSON Path: $.DefaultRuntime

  • Discard unchanged with heartbeat: 1d
Live restore enabled Dependent item docker.live_restore.enabled

Preprocessing

  • JSON Path: $.LiveRestoreEnabled

  • Boolean to decimal

  • Discard unchanged with heartbeat: 1d
Layers size Dependent item docker.layers_size

Preprocessing

  • JSON Path: $.LayersSize
Images size Dependent item docker.images_size

Preprocessing

  • JSON Path: $.Images[*].Size.sum()
Containers size Dependent item docker.containers_size

Preprocessing

  • JSON Path: $.Containers[*].SizeRw.sum()
Volumes size Dependent item docker.volumes_size

Preprocessing

  • JSON Path: $.Volumes[*].UsageData.Size.sum()
Images available

Number of top-level images.

 Dependent item docker.images.top_level

Preprocessing

  • JSON Path: $.length()

Triggers

Name Description Expression Severity Dependencies and additional info
Docker: Service is down last(/Docker by Áú»¢¶Ä²© agent 2/docker.ping)=0 Average Manual close: Yes
Docker: Failed to fetch info data

Áú»¢¶Ä²© has not received data for items for the last 30 minutes.

 nodata(/Docker by Áú»¢¶Ä²© agent 2/docker.name,30m)=1 Warning Manual close: Yes
Depends on:
  • Docker: Service is down
Docker: Version has changed

Docker version has changed. Acknowledge to close the problem manually.

 last(/Docker by Áú»¢¶Ä²© agent 2/docker.server_version,#1)<>last(/Docker by Áú»¢¶Ä²© agent 2/docker.server_version,#2) and length(last(/Docker by Áú»¢¶Ä²© agent 2/docker.server_version))>0 Info Manual close: Yes

LLD rule Images discovery

Name Description Type Key and additional info
Images discovery

Discovery of images metrics.

 Áú»¢¶Ä²© agent docker.images.discovery

Item prototypes for Images discovery

Name Description Type Key and additional info
Image {#NAME}: Created Dependent item docker.image.created["{#ID}"]

Preprocessing

  • JSON Path: $[?(@.Id == "{#ID}")].Created.first()

  • Discard unchanged with heartbeat: 1d
Image {#NAME}: Size Dependent item docker.image.size["{#ID}"]

Preprocessing

  • JSON Path: $[?(@.Id == "{#ID}")].Size.first()

LLD rule Containers discovery

Name Description Type Key and additional info
Containers discovery

Discovery of containers metrics.

Parameter:

true - Returns all containers

false - Returns only running containers

 Áú»¢¶Ä²© agent docker.containers.discovery[false]

Item prototypes for Containers discovery

Name Description Type Key and additional info
Container {#NAME}: Get stats

Get container stats based on resource usage.

 Áú»¢¶Ä²© agent docker.container_stats["{#NAME}"]
Container {#NAME}: CPU total usage per second Dependent item docker.container_stats.cpu_usage.total.rate["{#NAME}"]

Preprocessing

  • JSON Path: $.cpu_stats.cpu_usage.total_usage

  • Change per second

  • Custom multiplier: 1.0E-9
Container {#NAME}: CPU percent usage Dependent item docker.container_stats.cpu_pct_usage["{#NAME}"]

Preprocessing

  • JSON Path: $.cpu_stats.cpu_usage.percent_usage
Container {#NAME}: CPU kernelmode usage per second Dependent item docker.container_stats.cpu_usage.kernel.rate["{#NAME}"]

Preprocessing

  • JSON Path: $.cpu_stats.cpu_usage.usage_in_kernelmode

  • Change per second

  • Custom multiplier: 1.0E-9
Container {#NAME}: CPU usermode usage per second Dependent item docker.container_stats.cpu_usage.user.rate["{#NAME}"]

Preprocessing

  • JSON Path: $.cpu_stats.cpu_usage.usage_in_usermode

  • Change per second

  • Custom multiplier: 1.0E-9
Container {#NAME}: Online CPUs Dependent item docker.container_stats.online_cpus["{#NAME}"]

Preprocessing

  • JSON Path: $.cpu_stats.online_cpus
Container {#NAME}: Throttling periods

Number of periods with throttling active.

 Dependent item docker.container_stats.cpu_usage.throttling_periods["{#NAME}"]

Preprocessing

  • JSON Path: $.cpu_stats.throttling_data.periods
Container {#NAME}: Throttled periods

Number of periods when the container hits its throttling limit.

 Dependent item docker.container_stats.cpu_usage.throttled_periods["{#NAME}"]

Preprocessing

  • JSON Path: $.cpu_stats.throttling_data.throttled_periods
Container {#NAME}: Throttled time

Aggregate time the container was throttled for in nanoseconds.

 Dependent item docker.container_stats.cpu_usage.throttled_time["{#NAME}"]

Preprocessing

  • JSON Path: $.cpu_stats.throttling_data.throttled_time

  • Custom multiplier: 1.0E-9
Container {#NAME}: Memory usage Dependent item docker.container_stats.memory.usage["{#NAME}"]

Preprocessing

  • JSON Path: $.memory_stats.usage
Container {#NAME}: Memory maximum usage Dependent item docker.container_stats.memory.max_usage["{#NAME}"]

Preprocessing

  • JSON Path: $.memory_stats.max_usage
Container {#NAME}: Memory commit bytes Dependent item docker.container_stats.memory.commit_bytes["{#NAME}"]

Preprocessing

  • JSON Path: $.memory_stats.commitbytes
Container {#NAME}: Memory commit peak bytes Dependent item docker.container_stats.memory.commit_peak_bytes["{#NAME}"]

Preprocessing

  • JSON Path: $.memory_stats.commitpeakbytes
Container {#NAME}: Memory private working set Dependent item docker.container_stats.memory.private_working_set["{#NAME}"]

Preprocessing

  • JSON Path: $.memory_stats.privateworkingset
Container {#NAME}: Current PIDs count

Current number of PIDs the container has created.

 Dependent item docker.container_stats.pids_stats.current["{#NAME}"]

Preprocessing

  • JSON Path: $.pids_stats.current
Container {#NAME}: Networks bytes received per second Dependent item docker.networks.rx_bytes["{#NAME}"]

Preprocessing

  • JSON Path: $.networks[*].rx_bytes.sum()

    ??Custom on fail: Set value to: 0

  • Change per second
Container {#NAME}: Networks packets received per second Dependent item docker.networks.rx_packets["{#NAME}"]

Preprocessing

  • JSON Path: $.networks[*].rx_packets.sum()

    ??Custom on fail: Set value to: 0

  • Change per second
Container {#NAME}: Networks errors received per second Dependent item docker.networks.rx_errors["{#NAME}"]

Preprocessing

  • JSON Path: $.networks[*].rx_errors.sum()

    ??Custom on fail: Set value to: 0

  • Change per second
Container {#NAME}: Networks incoming packets dropped per second Dependent item docker.networks.rx_dropped["{#NAME}"]

Preprocessing

  • JSON Path: $.networks[*].rx_dropped.sum()

    ??Custom on fail: Set value to: 0

  • Change per second
Container {#NAME}: Networks bytes sent per second Dependent item docker.networks.tx_bytes["{#NAME}"]

Preprocessing

  • JSON Path: $.networks[*].tx_bytes.sum()

    ??Custom on fail: Set value to: 0

  • Change per second
Container {#NAME}: Networks packets sent per second Dependent item docker.networks.tx_packets["{#NAME}"]

Preprocessing

  • JSON Path: $.networks[*].tx_packets.sum()

    ??Custom on fail: Set value to: 0

  • Change per second
Container {#NAME}: Networks errors sent per second Dependent item docker.networks.tx_errors["{#NAME}"]

Preprocessing

  • JSON Path: $.networks[*].tx_errors.sum()

    ??Custom on fail: Set value to: 0

  • Change per second
Container {#NAME}: Networks outgoing packets dropped per second Dependent item docker.networks.tx_dropped["{#NAME}"]

Preprocessing

  • JSON Path: $.networks[*].tx_dropped.sum()

    ??Custom on fail: Set value to: 0

  • Change per second
Container {#NAME}: Get info

Return low-level information about a container.

 Áú»¢¶Ä²© agent docker.container_info["{#NAME}",full]
Container {#NAME}: Created Dependent item docker.container_info.created["{#NAME}"]

Preprocessing

  • JavaScript: The text is too long. Please see the template.

  • Discard unchanged with heartbeat: 1d
Container {#NAME}: Image Dependent item docker.container_info.image["{#NAME}"]

Preprocessing

  • JSON Path: $[?(@.Names[0] == "{#NAME}")].Image.first()

  • Discard unchanged with heartbeat: 1d
Container {#NAME}: Restart count Dependent item docker.container_info.restart_count["{#NAME}"]

Preprocessing

  • JSON Path: $.RestartCount
Container {#NAME}: Status Dependent item docker.container_info.state.status["{#NAME}"]

Preprocessing

  • JSON Path: $.State.Status

  • Discard unchanged with heartbeat: 1h
Container {#NAME}: Health status

Container's HEALTHCHECK.

 Dependent item docker.container_info.state.health["{#NAME}"]

Preprocessing

  • JavaScript: The text is too long. Please see the template.

  • In range: 1 -> 4

    ??Custom on fail: Set value to: 4
Container {#NAME}: Health failing streak Dependent item docker.container_info.state.health.failing["{#NAME}"]

Preprocessing

  • JSON Path: $.State.Health.FailingStreak

    ??Custom on fail: Discard value

  • Discard unchanged with heartbeat: 1h
Container {#NAME}: Running Dependent item docker.container_info.state.running["{#NAME}"]

Preprocessing

  • JSON Path: $.State.Running

  • Boolean to decimal
Container {#NAME}: Paused Dependent item docker.container_info.state.paused["{#NAME}"]

Preprocessing

  • JSON Path: $.State.Paused

  • Boolean to decimal
Container {#NAME}: Restarting Dependent item docker.container_info.state.restarting["{#NAME}"]

Preprocessing

  • JSON Path: $.State.Restarting

  • Boolean to decimal
Container {#NAME}: OOMKilled Dependent item docker.container_info.state.oomkilled["{#NAME}"]

Preprocessing

  • JSON Path: $.State.OOMKilled

  • Boolean to decimal
Container {#NAME}: Dead Dependent item docker.container_info.state.dead["{#NAME}"]

Preprocessing

  • JSON Path: $.State.Dead

  • Boolean to decimal
Container {#NAME}: Pid Dependent item docker.container_info.state.pid["{#NAME}"]

Preprocessing

  • JSON Path: $.State.Pid

  • Discard unchanged with heartbeat: 1d
Container {#NAME}: Exit code Dependent item docker.container_info.state.exitcode["{#NAME}"]

Preprocessing

  • JSON Path: $.State.ExitCode

  • Discard unchanged with heartbeat: 1d
Container {#NAME}: Error Dependent item docker.container_info.state.error["{#NAME}"]

Preprocessing

  • JSON Path: $.State.Error

  • Discard unchanged with heartbeat: 1d
Container {#NAME}: Started at Dependent item docker.container_info.started["{#NAME}"]

Preprocessing

  • JavaScript: The text is too long. Please see the template.

  • Discard unchanged with heartbeat: 1d
Container {#NAME}: Finished at

Time at which the container last terminated.

 Dependent item docker.container_info.finished["{#NAME}"]

Preprocessing

  • JavaScript: The text is too long. Please see the template.

  • Discard unchanged with heartbeat: 1d

Trigger prototypes for Containers discovery

Name Description Expression Severity Dependencies and additional info
Docker: Container {#NAME}: Health state container is unhealthy

Container health state is unhealthy.

 count(/Docker by Áú»¢¶Ä²© agent 2/docker.container_info.state.health["{#NAME}"],2m,,2)>=2 High
Docker: Container {#NAME}: Container has been stopped with error code last(/Docker by Áú»¢¶Ä²© agent 2/docker.container_info.state.exitcode["{#NAME}"])>0 and last(/Docker by Áú»¢¶Ä²© agent 2/docker.container_info.state.running["{#NAME}"])=0 Average Manual close: Yes
Docker: Container {#NAME}: An error has occurred in the container

Container {#NAME} has an error. Acknowledge to close the problem manually.

 last(/Docker by Áú»¢¶Ä²© agent 2/docker.container_info.state.error["{#NAME}"],#1)<>last(/Docker by Áú»¢¶Ä²© agent 2/docker.container_info.state.error["{#NAME}"],#2) and length(last(/Docker by Áú»¢¶Ä²© agent 2/docker.container_info.state.error["{#NAME}"]))>0 Warning Manual close: Yes

Feedback

Please report any issues with the template at

You can also provide feedback, discuss the template, or ask for help at ZABBIX forums

Articles and documentation

  • blog.zabbix.com:
  • blog.zabbix.com:
  • blog.zabbix.com:
  • hub.docker.com:
  • Áú»¢¶Ä²© Documentation: Installation from containers
  • access.redhat.com:
  • zabbix.org:
  • youtube.com:
  • techexpert.tips:
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