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https://github.com/psviderski/uncloud.git
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897f30fd36
* Add version check mechanism to gRPC calls
* Use semver not semver/v3
* Give dev builds a special "infinite" version number (999.0.0-dev)
* Handle no metadata on grpc call correctly for version check
* Move versioncheck package to root pkg/ from pkg/api/ since it is shared by both pkg/api/ and pkg/client/
* Only show "no daemon version" warning once
* Append version headers to metadata, not overwrite...
* Unit tests on versioncheck logic
* Move SetHeader to the ServerStream in ServerStreamInterceptor
* Go modernizer nits: interface{} -> any
* Use more conventional gRPC header names for version/min-versions
* Add TODO notes on checkDaemonVersionInResponse and related code that can be removed eventually after transition to version checking client/daemons
* Use testify for testing assertions
* Add explanatory comments on MinCLIVersion and MinDaemonVersion
---------
Co-authored-by: Pasha Sviderski <me@psviderski.name>
46 lines
1.2 KiB
Go
46 lines
1.2 KiB
Go
package connector
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import (
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"context"
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"fmt"
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"github.com/psviderski/uncloud/pkg/versioncheck"
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"golang.org/x/net/proxy"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials/insecure"
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)
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// UnixConnector establishes a connection to the machine API through a unix domain socket.
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type UnixConnector struct {
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socketPath string
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}
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func NewUnixConnector(socketPath string) *UnixConnector {
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return &UnixConnector{socketPath: socketPath}
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}
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func (c *UnixConnector) Connect(_ context.Context) (*grpc.ClientConn, error) {
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// gRPC uses "unix:path" syntax for unix sockets.
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target := "unix:" + c.socketPath
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conn, err := grpc.NewClient(
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target,
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grpc.WithTransportCredentials(insecure.NewCredentials()),
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grpc.WithDefaultServiceConfig(defaultServiceConfig),
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grpc.WithUnaryInterceptor(versioncheck.ClientUnaryInterceptor),
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grpc.WithStreamInterceptor(versioncheck.ClientStreamInterceptor),
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)
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if err != nil {
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return nil, fmt.Errorf("create machine API client: %w", err)
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}
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return conn, nil
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}
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func (c *UnixConnector) Dialer() (proxy.ContextDialer, error) {
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return nil, fmt.Errorf("proxy connections are not supported over a unix connection")
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}
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func (c *UnixConnector) Close() error {
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return nil
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}
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