mirror of https://github.com/status-im/consul.git
251 lines
8.6 KiB
Go
251 lines
8.6 KiB
Go
package envoy
|
|
|
|
// BootstrapTplArgs is the set of arguments that may be interpolated into the
|
|
// Envoy bootstrap template.
|
|
type BootstrapTplArgs struct {
|
|
GRPC
|
|
|
|
// ProxyCluster is the cluster name for the the Envoy `node` specification and
|
|
// is typically the same as the ProxyID.
|
|
ProxyCluster string
|
|
|
|
// ProxyID is the ID of the proxy service instance as registered with the
|
|
// local Consul agent. This must be used as the Envoy `node.id` in order for
|
|
// the agent to deliver the correct configuration.
|
|
ProxyID string
|
|
|
|
// ProxySourceService is the Consul service name to report for this proxy
|
|
// instance's source service label. For sidecars it should be the
|
|
// Proxy.DestinationServiceName. For gateways and similar it is the service
|
|
// name of the proxy service itself.
|
|
ProxySourceService string
|
|
|
|
// AgentCAPEM is the CA to use to verify the local agent gRPC service if
|
|
// TLS is enabled.
|
|
AgentCAPEM string
|
|
|
|
// AdminAccessLogPath The path to write the access log for the
|
|
// administration server. If no access log is desired specify
|
|
// "/dev/null". By default it will use "/dev/null".
|
|
AdminAccessLogPath string
|
|
|
|
// AdminBindAddress is the address the Envoy admin server should bind to.
|
|
AdminBindAddress string
|
|
|
|
// AdminBindPort is the port the Envoy admin server should bind to.
|
|
AdminBindPort string
|
|
|
|
// LocalAgentClusterName is the name reserved for the local Consul agent gRPC
|
|
// service and is expected to be used for that purpose.
|
|
LocalAgentClusterName string
|
|
|
|
// Token is the Consul ACL token provided which is required to make gRPC
|
|
// discovery requests. If non-empty, this must be configured as the gRPC
|
|
// service "initial_metadata" with the key "x-consul-token" in order to
|
|
// authorize the discovery streaming RPCs.
|
|
Token string
|
|
|
|
// StaticClustersJSON is JSON string, each is expected to be a valid Cluster
|
|
// definition. They are appended to the "static_resources.clusters" list. Note
|
|
// that cluster names should be chosen in such a way that they won't collide
|
|
// with service names since we use plain service names as cluster names in xDS
|
|
// to make metrics population simpler and cluster names mush be unique. See
|
|
// https://www.envoyproxy.io/docs/envoy/v1.9.0/api-v2/api/v2/cds.proto.
|
|
StaticClustersJSON string
|
|
|
|
// StaticListenersJSON is a JSON string containing zero or more Listener
|
|
// definitions. They are appended to the "static_resources.listeners" list. A
|
|
// single listener should be given as a plain object, if more than one is to
|
|
// be added, they should be separated by a comma suitable for direct injection
|
|
// into a JSON array.
|
|
// See https://www.envoyproxy.io/docs/envoy/v1.9.0/api-v2/api/v2/lds.proto.
|
|
StaticListenersJSON string
|
|
|
|
// StatsSinksJSON is a JSON string containing an array in the right format
|
|
// to be rendered as the body of the `stats_sinks` field at the top level of
|
|
// the bootstrap config. It's format may vary based on Envoy version used. See
|
|
// https://www.envoyproxy.io/docs/envoy/v1.9.0/api-v2/config/metrics/v2/stats.proto#config-metrics-v2-statssink.
|
|
StatsSinksJSON string
|
|
|
|
// StatsConfigJSON is a JSON string containing an object in the right format
|
|
// to be rendered as the body of the `stats_config` field at the top level of
|
|
// the bootstrap config. It's format may vary based on Envoy version used. See
|
|
// https://www.envoyproxy.io/docs/envoy/v1.9.0/api-v2/config/metrics/v2/stats.proto#envoy-api-msg-config-metrics-v2-statsconfig.
|
|
StatsConfigJSON string
|
|
|
|
// StatsFlushInterval is the time duration between Envoy stats flushes. It is
|
|
// in proto3 "duration" string format for example "1.12s" See
|
|
// https://developers.google.com/protocol-buffers/docs/proto3#json and
|
|
// https://www.envoyproxy.io/docs/envoy/v1.9.0/api-v2/config/bootstrap/v2/bootstrap.proto#bootstrap
|
|
StatsFlushInterval string
|
|
|
|
// TracingConfigJSON is a JSON string containing an object in the right format
|
|
// to be rendered as the body of the `tracing` field at the top level of
|
|
// the bootstrap config. It's format may vary based on Envoy version used.
|
|
// See https://www.envoyproxy.io/docs/envoy/v1.9.0/api-v2/config/trace/v2/trace.proto.
|
|
TracingConfigJSON string
|
|
|
|
// Namespace is the Consul Enterprise Namespace of the proxy service instance
|
|
// as registered with the Consul agent.
|
|
Namespace string
|
|
|
|
// Partition is the Consul Enterprise Partition of the proxy service instance
|
|
// as registered with the Consul agent.
|
|
Partition string
|
|
|
|
// Datacenter is the datacenter where the proxy service instance is registered.
|
|
Datacenter string
|
|
|
|
// EnvoyVersion is the envoy version, which is necessary to generate the
|
|
// correct configuration.
|
|
EnvoyVersion string
|
|
|
|
// PrometheusBackendPort will configure a "prometheus_backend" cluster which
|
|
// envoy_prometheus_bind_addr will point to.
|
|
PrometheusBackendPort string
|
|
|
|
// PrometheusScrapePath will configure the path where metrics are exposed on
|
|
// the envoy_prometheus_bind_addr listener.
|
|
PrometheusScrapePath string
|
|
}
|
|
|
|
// GRPC settings used in the bootstrap template.
|
|
type GRPC struct {
|
|
// AgentAddress is the IP address of the local agent where the proxy instance
|
|
// is registered.
|
|
AgentAddress string
|
|
|
|
// AgentPort is the gRPC port exposed on the local agent.
|
|
AgentPort string
|
|
|
|
// AgentTLS is true if the local agent gRPC service should be accessed over
|
|
// TLS.
|
|
AgentTLS bool
|
|
|
|
// AgentSocket is the path to a Unix Socket for communicating with the
|
|
// local agent's gRPC endpoint. Disabled if the empty (the default),
|
|
// but overrides AgentAddress and AgentPort if set.
|
|
AgentSocket string
|
|
}
|
|
|
|
// bootstrapTemplate sets '"ignore_health_on_host_removal": false' JUST to force this to be detected as a v3 bootstrap
|
|
// config.
|
|
const bootstrapTemplate = `{
|
|
"admin": {
|
|
"access_log_path": "{{ .AdminAccessLogPath }}",
|
|
"address": {
|
|
"socket_address": {
|
|
"address": "{{ .AdminBindAddress }}",
|
|
"port_value": {{ .AdminBindPort }}
|
|
}
|
|
}
|
|
},
|
|
"node": {
|
|
"cluster": "{{ .ProxyCluster }}",
|
|
"id": "{{ .ProxyID }}",
|
|
"metadata": {
|
|
"namespace": "{{if ne .Namespace ""}}{{ .Namespace }}{{else}}default{{end}}",
|
|
"partition": "{{if ne .Partition ""}}{{ .Partition }}{{else}}default{{end}}",
|
|
"envoy_version": "{{ .EnvoyVersion }}"
|
|
}
|
|
},
|
|
"static_resources": {
|
|
"clusters": [
|
|
{
|
|
"name": "{{ .LocalAgentClusterName }}",
|
|
"ignore_health_on_host_removal": false,
|
|
"connect_timeout": "1s",
|
|
"type": "STATIC",
|
|
{{- if .AgentTLS -}}
|
|
"transport_socket": {
|
|
"name": "tls",
|
|
"typed_config": {
|
|
"@type": "type.googleapis.com/envoy.extensions.transport_sockets.tls.v3.UpstreamTlsContext",
|
|
"common_tls_context": {
|
|
"validation_context": {
|
|
"trusted_ca": {
|
|
"inline_string": "{{ .AgentCAPEM }}"
|
|
}
|
|
}
|
|
}
|
|
}
|
|
},
|
|
{{- end }}
|
|
"http2_protocol_options": {},
|
|
"loadAssignment": {
|
|
"clusterName": "{{ .LocalAgentClusterName }}",
|
|
"endpoints": [
|
|
{
|
|
"lbEndpoints": [
|
|
{
|
|
"endpoint": {
|
|
"address": {
|
|
{{- if .AgentSocket -}}
|
|
"pipe": {
|
|
"path": "{{ .AgentSocket }}"
|
|
}
|
|
{{- else -}}
|
|
"socket_address": {
|
|
"address": "{{ .AgentAddress }}",
|
|
"port_value": {{ .AgentPort }}
|
|
}
|
|
{{- end -}}
|
|
}
|
|
}
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
}
|
|
{{- if .StaticClustersJSON -}}
|
|
,
|
|
{{ .StaticClustersJSON }}
|
|
{{- end }}
|
|
]{{- if .StaticListenersJSON -}}
|
|
,
|
|
"listeners": [
|
|
{{ .StaticListenersJSON }}
|
|
]
|
|
{{- end }}
|
|
},
|
|
{{- if .StatsSinksJSON }}
|
|
"stats_sinks": {{ .StatsSinksJSON }},
|
|
{{- end }}
|
|
{{- if .StatsConfigJSON }}
|
|
"stats_config": {{ .StatsConfigJSON }},
|
|
{{- end }}
|
|
{{- if .StatsFlushInterval }}
|
|
"stats_flush_interval": "{{ .StatsFlushInterval }}",
|
|
{{- end }}
|
|
{{- if .TracingConfigJSON }}
|
|
"tracing": {{ .TracingConfigJSON }},
|
|
{{- end }}
|
|
"dynamic_resources": {
|
|
"lds_config": {
|
|
"ads": {},
|
|
"resource_api_version": "V3"
|
|
},
|
|
"cds_config": {
|
|
"ads": {},
|
|
"resource_api_version": "V3"
|
|
},
|
|
"ads_config": {
|
|
"api_type": "DELTA_GRPC",
|
|
"transport_api_version": "V3",
|
|
"grpc_services": {
|
|
"initial_metadata": [
|
|
{
|
|
"key": "x-consul-token",
|
|
"value": "{{ .Token }}"
|
|
}
|
|
],
|
|
"envoy_grpc": {
|
|
"cluster_name": "{{ .LocalAgentClusterName }}"
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
`
|