cadvisor

command module
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Published: Dec 4, 2014 License: Apache-2.0 Imports: 22 Imported by: 0

README

cAdvisor

cAdvisor (Container Advisor) provides container users an understanding of the resource usage and performance characteristics of their running containers. It is a running daemon that collects, aggregates, processes, and exports information about running containers. Specifically, for each container it keeps resource isolation parameters, historical resource usage, histograms of complete historical resource usage and network statistics. This data is exported by container and machine-wide.

cAdvisor has native support for Docker containers and should support just about any other container type out of the box. We strive for support accross the board so feel free to open an issue if that is not the case. cAdvisor's container abstraction is based on lmctfy's so containers are inherently nested hierarchically.

cAdvisor

Quick Start: Running cAdvisor in a Docker Container

To quickly tryout cAdvisor on your machine with Docker, we have a Docker image that includes everything you need to get started. Simply run:

sudo docker run \
  --volume=/:/rootfs:ro \
  --volume=/var/run:/var/run:rw \
  --volume=/sys:/sys:ro \
  --volume=/var/lib/docker/:/var/lib/docker:ro \
  --publish=8080:8080 \
  --detach=true \
  --name=cadvisor \
  google/cadvisor:latest

cAdvisor is now running (in the background) on http://localhost:8080. The setup includes directories with Docker state cAdvisor needs to observe.

Note: If you're running on CentOS, RHEL, or are using LXC take a look at our running instructions.

We have detailed instructions on running cAdvisor standalone outside of Docker. cAdvisor running options may also be interesting for advanced usecases. If you want to build your own cAdvisor Docker image see our deployment page.

Building and Testing

See the more detailed instructions in the build page. This includes instructions for building and deploying the cAdvisor Docker image.

InfluxDB and Cluster Monitoring

cAdvisor supports exporting stats to InfluxDB. See the documentation for more information and examples.

Heapster enables cluster wide monitoring of containers using cAdvisor.

Web UI

cAdvisor exposes a web UI at its port:

http://<hostname>:<port>/

See the documentation for more details.

Remote REST API & Clients

cAdvisor exposes its raw and processed stats via a versioned remote REST API. See the API's documentation for more information.

There is also an official Go client implementation in the client directory. See the documentation for more information.

Roadmap

cAdvisor aims to improve the resource usage and performance characteristics of running containers. Today, we gather and expose this information to users. In our roadmap:

  • Advise on the performance of a container (e.g.: when it is being negatively affected by another, when it is not receiving the resources it requires, etc)
  • Auto-tune the performance of the container based on previous advise.
  • Provide usage prediction to cluster schedulers and orchestration layers.

Community

Contributions, questions, and comments are all welcomed and encouraged! cAdvisor developers hang out in #google-containers room on freenode.net. We also have the google-containers Google Groups mailing list.

Documentation

The Go Gopher

There is no documentation for this package.

Directories

Path Synopsis
Godeps
_workspace/src/code.google.com/p/go.exp/inotify
Package inotify implements a wrapper for the Linux inotify system.
Package inotify implements a wrapper for the Linux inotify system.
_workspace/src/code.google.com/p/goauth2/oauth
Package oauth supports making OAuth2-authenticated HTTP requests.
Package oauth supports making OAuth2-authenticated HTTP requests.
_workspace/src/code.google.com/p/goauth2/oauth/example
This program makes a call to the specified API, authenticated with OAuth2.
This program makes a call to the specified API, authenticated with OAuth2.
_workspace/src/code.google.com/p/goauth2/oauth/jwt
The jwt package provides support for creating credentials for OAuth2 service account requests.
The jwt package provides support for creating credentials for OAuth2 service account requests.
_workspace/src/code.google.com/p/goauth2/oauth/jwt/example
This program makes a read only call to the Google Cloud Storage API, authenticated with OAuth2.
This program makes a read only call to the Google Cloud Storage API, authenticated with OAuth2.
_workspace/src/code.google.com/p/gomock/gomock
GoMock - a mock framework for Go.
GoMock - a mock framework for Go.
_workspace/src/code.google.com/p/google-api-go-client/bigquery/v2
Package bigquery provides access to the BigQuery API.
Package bigquery provides access to the BigQuery API.
_workspace/src/code.google.com/p/google-api-go-client/googleapi
Package googleapi contains the common code shared by all Google API libraries.
Package googleapi contains the common code shared by all Google API libraries.
_workspace/src/code.google.com/p/google-api-go-client/googleapi/internal/uritemplates
Package uritemplates is a level 4 implementation of RFC 6570 (URI Template, http://tools.ietf.org/html/rfc6570).
Package uritemplates is a level 4 implementation of RFC 6570 (URI Template, http://tools.ietf.org/html/rfc6570).
_workspace/src/code.google.com/p/google-api-go-client/googleapi/transport
Package transport contains HTTP transports used to make authenticated API requests.
Package transport contains HTTP transports used to make authenticated API requests.
_workspace/src/github.com/coreos/go-systemd/dbus
Integration with the systemd D-Bus API.
Integration with the systemd D-Bus API.
_workspace/src/github.com/docker/libcontainer
Temporary API endpoint for libcontainer while the full API is finalized (api.go).
Temporary API endpoint for libcontainer while the full API is finalized (api.go).
_workspace/src/github.com/docker/libcontainer/integration
integration is used for integration testing of libcontainer
integration is used for integration testing of libcontainer
_workspace/src/github.com/docker/libcontainer/netlink
Packet netlink provide access to low level Netlink sockets and messages.
Packet netlink provide access to low level Netlink sockets and messages.
+build linux,amd64
_workspace/src/github.com/fsouza/go-dockerclient
Package docker provides a client for the Docker remote API.
Package docker provides a client for the Docker remote API.
_workspace/src/github.com/fsouza/go-dockerclient/testing
Package testing provides a fake implementation of the Docker API, useful for testing purpose.
Package testing provides a fake implementation of the Docker API, useful for testing purpose.
_workspace/src/github.com/godbus/dbus
Package dbus implements bindings to the D-Bus message bus system.
Package dbus implements bindings to the D-Bus message bus system.
_workspace/src/github.com/godbus/dbus/introspect
Package introspect provides some utilities for dealing with the DBus introspection format.
Package introspect provides some utilities for dealing with the DBus introspection format.
_workspace/src/github.com/godbus/dbus/prop
Package prop provides the Properties struct which can be used to implement org.freedesktop.DBus.Properties.
Package prop provides the Properties struct which can be used to implement org.freedesktop.DBus.Properties.
_workspace/src/github.com/golang/glog
Package glog implements logging analogous to the Google-internal C++ INFO/ERROR/V setup.
Package glog implements logging analogous to the Google-internal C++ INFO/ERROR/V setup.
_workspace/src/github.com/kr/pretty
Package pretty provides pretty-printing for Go values.
Package pretty provides pretty-printing for Go values.
_workspace/src/github.com/kr/text
Package text provides rudimentary functions for manipulating text in paragraphs.
Package text provides rudimentary functions for manipulating text in paragraphs.
_workspace/src/github.com/kr/text/colwriter
Package colwriter provides a write filter that formats input lines in multiple columns.
Package colwriter provides a write filter that formats input lines in multiple columns.
_workspace/src/github.com/kr/text/mc
Command mc prints in multiple columns.
Command mc prints in multiple columns.
_workspace/src/github.com/stretchr/objx
objx - Go package for dealing with maps, slices, JSON and other data.
objx - Go package for dealing with maps, slices, JSON and other data.
_workspace/src/github.com/stretchr/testify/assert
A set of comprehensive testing tools for use with the normal Go testing system.
A set of comprehensive testing tools for use with the normal Go testing system.
_workspace/src/github.com/stretchr/testify/mock
Provides a system by which it is possible to mock your objects and verify calls are happening as expected.
Provides a system by which it is possible to mock your objects and verify calls are happening as expected.
Package api provides a handler for /api/
Package api provides a handler for /api/
TODO(cAdvisor): Package comment.
TODO(cAdvisor): Package comment.
Package container defines types for sub-container events and also defines an interface for container operation handlers.
Package container defines types for sub-container events and also defines an interface for container operation handlers.
docker
Handler for Docker containers.
Handler for Docker containers.
raw
Unmarshal's a Containers description json file.
Unmarshal's a Containers description json file.
+build linux Provides Filesystem Stats
+build linux Provides Filesystem Stats
integration
Manager of cAdvisor-monitored containers.
Manager of cAdvisor-monitored containers.
Page for /containers/
Page for /containers/
fs
procfs
procfs contains several low level functions to read information from /proc filesystem, and also provides some utility functions like JiffiesToDuration.
procfs contains several low level functions to read information from /proc filesystem, and also provides some utility functions like JiffiesToDuration.

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