Documentation
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Index ¶
Constants ¶
const ConnectTopic = "apiserver.agent-connect"
ConnectTopic is the topic name for the published message whenever an agent connects to the API server. data: `APIConnection`
const DetailsRequestTopic = "apiserver.details-request"
DetailsRequestTopic is the topic that details requests are published on. The peergrouper responds those requests, publishing the current details on the DetailsTopic.
const DetailsTopic = "apiserver.details"
DetailsTopic is the topic name for the published message when the details of the api servers change. This message is normally published by the peergrouper when the set of API servers changes.
const DisconnectTopic = "apiserver.agent-disconnect"
DisconnectTopic is the topic name for the published message whenever an agent disconnects to the API server. data: `APIConnection`
const PresenceRequestTopic = "presence.request"
PresenceRequestTopic is used by the presence worker to ask another HA server to report its connections. data: `OriginTarget`
const PresenceResponseTopic = "presence.response"
PresenceResponseTopic is used by the presence worker to respond to the request topic above. data: `PresenceResponse`
const RestartTopic = "apiserver.restart"
RestartTopic is used by the API server to listen for events that should cause the API server to be bounced.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type APIConnection ¶
type APIConnection struct {
AgentTag string `yaml:"agent-tag"`
ControllerAgent bool `yaml:"controller-agent,omitempty"`
ModelUUID string `yaml:"model-uuid"`
ConnectionID uint64 `yaml:"connection-id"`
Origin string `yaml:"origin"`
UserData string `yaml:"user-data,omitempty"`
}
APIConnection holds all the salient pieces of information that are available when an agent connects to the API server.
type APIServer ¶
type APIServer struct {
// ID contains the Juju machine ID for the apiserver.
ID string `yaml:"id"`
// Addresses contains all of the usable addresses of the
// apiserver machine.
Addresses []string `yaml:"addresses"`
// InternalAddress, if non-empty, is the address that
// other API servers should use to connect to this API
// server, in the form addr:port.
//
// This may be empty if the API server is not fully
// initialised.
InternalAddress string `yaml:"internal-address,omitempty"`
}
APIServer contains the machine id and addresses of a single API server machine.
type Details ¶
type Details struct {
// Servers is a map of machine ID to the details for that server.
Servers map[string]APIServer `yaml:"servers"`
LocalOnly bool `yaml:"local-only"`
}
Details contains the ids and addresses of all the current API server machines.
type DetailsRequest ¶
type DetailsRequest struct {
Requester string `yaml:"requester"`
LocalOnly bool `yaml:"local-only"`
}
DetailsRequest indicates the worker who is asking for the details to be sent. It should always be LocalOnly - we only want to ask our local PeerGrouper for details.
type OriginTarget ¶
type OriginTarget common.OriginTarget
OriginTarget represents the data for the connect and disconnect topics.
type PresenceResponse ¶
type PresenceResponse struct {
Origin string `yaml:"origin"`
Connections []APIConnection `yaml:"connections"`
}
PresenceResponse contains all of the current connections for the server identified by Origin.
Source Files