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host.go
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host.go
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// Copyright 2016-2018, Pulumi Corporation.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package provider
import (
"golang.org/x/net/context"
"google.golang.org/grpc"
"github.com/pulumi/pulumi/pkg/diag"
"github.com/pulumi/pulumi/pkg/resource"
"github.com/pulumi/pulumi/pkg/util/contract"
"github.com/pulumi/pulumi/pkg/util/rpcutil"
lumirpc "github.com/pulumi/pulumi/sdk/proto/go"
)
// HostClient is a client interface into the host's engine RPC interface.
type HostClient struct {
conn *grpc.ClientConn
client lumirpc.EngineClient
}
// NewHostClient dials the target address, connects over gRPC, and returns a client interface.
func NewHostClient(addr string) (*HostClient, error) {
conn, err := grpc.Dial(addr, grpc.WithInsecure(), grpc.WithUnaryInterceptor(
rpcutil.OpenTracingClientInterceptor(),
))
if err != nil {
return nil, err
}
return &HostClient{
conn: conn,
client: lumirpc.NewEngineClient(conn),
}, nil
}
// Close closes and renders the connection and client unusable.
func (host *HostClient) Close() error {
return host.conn.Close()
}
func (host *HostClient) log(
context context.Context, sev diag.Severity, urn resource.URN, msg string, ephemeral bool,
) error {
var rpcsev lumirpc.LogSeverity
switch sev {
case diag.Debug:
rpcsev = lumirpc.LogSeverity_DEBUG
case diag.Info:
rpcsev = lumirpc.LogSeverity_INFO
case diag.Warning:
rpcsev = lumirpc.LogSeverity_WARNING
case diag.Error:
rpcsev = lumirpc.LogSeverity_ERROR
default:
contract.Failf("Unrecognized log severity type: %v", sev)
}
_, err := host.client.Log(context, &lumirpc.LogRequest{
Severity: rpcsev,
Message: msg,
Urn: string(urn),
Ephemeral: ephemeral,
})
return err
}
// Log logs a global message, including errors and warnings.
func (host *HostClient) Log(
context context.Context, sev diag.Severity, urn resource.URN, msg string,
) error {
return host.log(context, sev, urn, msg, false)
}
// LogStatus logs a global status message, including errors and warnings. Status messages will
// appear in the `Info` column of the progress display, but not in the final output.
func (host *HostClient) LogStatus(
context context.Context, sev diag.Severity, urn resource.URN, msg string,
) error {
return host.log(context, sev, urn, msg, true)
}