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fixed cgroups docu (#7889)

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A. Binzxxxxxx 2020-07-24 18:42:17 +02:00 committed by GitHub
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commit 72fdfd8bb0
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2 changed files with 21 additions and 11 deletions
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26
plugins/inputs/cgroup/README.md
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@ -43,20 +43,30 @@ All measurements have the following tags:
### Configuration: ### Configuration:
``` ```toml
# [[inputs.cgroup]] # [[inputs.cgroup]]
# paths = [ # paths = [
# "/cgroup/memory", # root cgroup # "/sys/fs/cgroup/memory", # root cgroup
# "/cgroup/memory/child1", # container cgroup # "/sys/fs/cgroup/memory/child1", # container cgroup
# "/cgroup/memory/child2/*", # all children cgroups under child2, but not child2 itself # "/sys/fs/cgroup/memory/child2/*", # all children cgroups under child2, but not child2 itself
# ] # ]
# files = ["memory.*usage*", "memory.limit_in_bytes"] # files = ["memory.*usage*", "memory.limit_in_bytes"]
```
### usage examples:
```toml
# [[inputs.cgroup]]
# paths = [
# "/sys/fs/cgroup/cpu", # root cgroup
# "/sys/fs/cgroup/cpu/*", # all container cgroups
# "/sys/fs/cgroup/cpu/*/*", # all children cgroups under each container cgroup
# ]
# files = ["cpuacct.usage", "cpu.cfs_period_us", "cpu.cfs_quota_us"]
# [[inputs.cgroup]] # [[inputs.cgroup]]
# paths = [ # paths = [
# "/cgroup/cpu", # root cgroup # "/sys/fs/cgroup/unified/*", # root cgroup
# "/cgroup/cpu/*", # all container cgroups
# "/cgroup/cpu/*/*", # all children cgroups under each container cgroup
# ] # ]
# files = ["cpuacct.usage", "cpu.cfs_period_us", "cpu.cfs_quota_us"] # files = ["*"]
``` ```

6
plugins/inputs/cgroup/cgroup.go
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@ -16,9 +16,9 @@ var sampleConfig = `
## want to monitor if you have a large number of cgroups, to avoid ## want to monitor if you have a large number of cgroups, to avoid
## any cardinality issues. ## any cardinality issues.
# paths = [ # paths = [
# "/cgroup/memory", # "/sys/fs/cgroup/memory",
# "/cgroup/memory/child1", # "/sys/fs/cgroup/memory/child1",
# "/cgroup/memory/child2/*", # "/sys/fs/cgroup/memory/child2/*",
# ] # ]
## cgroup stat fields, as file names, globs are supported. ## cgroup stat fields, as file names, globs are supported.
## these file names are appended to each path from above. ## these file names are appended to each path from above.