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124792a871
This leverages recent additions to libkv enabling client
authentication via TLS so the discovery back-end can be locked
down with mutual TLS. Example usage:
docker daemon [other args] \
--cluster-advertise 192.168.122.168:2376 \
--cluster-store etcd://192.168.122.168:2379 \
--cluster-store-opt kv.cacertfile=/path/to/ca.pem \
--cluster-store-opt kv.certfile=/path/to/cert.pem \
--cluster-store-opt kv.keyfile=/path/to/key.pem
Signed-off-by: Daniel Hiltgen <daniel.hiltgen@docker.com>
35 lines
1.1 KiB
Go
35 lines
1.1 KiB
Go
package discovery
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import (
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"errors"
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"time"
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)
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var (
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// ErrNotSupported is returned when a discovery service is not supported.
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ErrNotSupported = errors.New("discovery service not supported")
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// ErrNotImplemented is returned when discovery feature is not implemented
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// by discovery backend.
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ErrNotImplemented = errors.New("not implemented in this discovery service")
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)
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// Watcher provides watching over a cluster for nodes joining and leaving.
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type Watcher interface {
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// Watch the discovery for entry changes.
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// Returns a channel that will receive changes or an error.
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// Providing a non-nil stopCh can be used to stop watching.
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Watch(stopCh <-chan struct{}) (<-chan Entries, <-chan error)
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}
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// Backend is implemented by discovery backends which manage cluster entries.
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type Backend interface {
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// Watcher must be provided by every backend.
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Watcher
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// Initialize the discovery with URIs, a heartbeat, a ttl and optional settings.
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Initialize(string, time.Duration, time.Duration, map[string]string) error
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// Register to the discovery.
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Register(string) error
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}
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