https://github.com/monder/rkt-sidekick

An aci that writes container ip address to etcd
https://github.com/monder/rkt-sidekick

etcd flannel rkt sidekick

Last synced: about 2 months ago
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An aci that writes container ip address to etcd

• Host: GitHub
• URL: https://github.com/monder/rkt-sidekick
• Owner: monder
• License: mit
• Created: 2016-07-17T09:17:15.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2016-11-25T14:38:30.000Z (about 8 years ago)
• Last Synced: 2024-11-09T22:24:29.342Z (3 months ago)
• Topics: etcd, flannel, rkt, sidekick
• Language: Go
• Size: 14.6 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# rkt-sidekick

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An `ACI` that writes container ip address to [etcd].

That provides the more [rkt]-like approach to [sidekick] model implementation which comes in handy when using multihost network solutions such as [flannel]

## Images

Signed `ACI`s for `linux-arm64` are available at `monder.cc/rkt-sidekick` with versions matching git tags.

## Usage

```

rkt run \

   --insecure-options=image \

   --net=flannel \

   docker://redis \

   monder.cc/rkt-sidekick:v0.1.0 -- -cidr 10.0.0.0/16 -format '{"host":"$ip", "port":3000}' /services/redis-a6f43b/ip

```

The script above will launch redis and a sidekick in the same pod. The sidekick will enumerate all network interfaces and write the first one matching `10.0.0.0/16` to the formatted string to `/services/redis-a6f43b/ip` 

Please note how to pass arguments to multiple images: https://coreos.com/rkt/docs/latest/subcommands/run.html#passing-arguments

### Other options

```

Usage: rkt-sidekick route53 [options] [ZONE_ID] [HOSTNAME]

Options:

    -cidr              cidr to match the ip (default: "0.0.0.0/0")  

Usage: rkt-sidekick etcd [options] [KEY_IN_ETCD]

Options:

    -cidr              cidr to match the ip (default: "0.0.0.0/0")

    -etcd-endpoint     an etcd address in the cluster (default: "http://172.16.28.1:2379")

    -format            format of the etcd key value. '$ip' will be replace by container's ip address (default: "$ip")

    -expire-dir        set expiration TTLs for all items under that directory, not only the leaf node

    -interval          refresh interval (default: "1m")

```

## License

MIT

[rkt]: https://github.com/coreos/rkt

[etcd]: https://github.com/coreos/etcd

[flannel]: https://github.com/coreos/flannel

[sidekick]: https://coreos.com/fleet/docs/latest/examples/service-discovery.html#sidekick-model