mirror of https://github.com/docker/compose.git
74 lines
2.0 KiB
Go
74 lines
2.0 KiB
Go
/*
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Copyright (c) 2019 Docker Inc.
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use, copy,
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modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED,
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INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM,
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DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH
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THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package client
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import (
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"context"
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"os"
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"os/signal"
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"syscall"
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"time"
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v1 "github.com/docker/api/backend/v1"
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"google.golang.org/grpc"
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)
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// NewContext is a context that is canceled when a signal is
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// sent to the process
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func NewContext() (context.Context, func()) {
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ctx, cancel := context.WithCancel(context.Background())
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s := make(chan os.Signal)
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signal.Notify(s, syscall.SIGTERM, syscall.SIGINT)
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go func() {
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<-s
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cancel()
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}()
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return ctx, cancel
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}
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// New returns a GRPC client
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func New(address string, timeout time.Duration) (*Client, error) {
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conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock(), grpc.WithTimeout(timeout))
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if err != nil {
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return nil, err
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}
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return &Client{
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conn: conn,
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BackendClient: v1.NewBackendClient(conn),
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}, nil
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}
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type Client struct {
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conn *grpc.ClientConn
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v1.BackendClient
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}
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func (c *Client) Close() error {
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return c.conn.Close()
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}
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