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make eval to use kpt container & exec runtime (#1898)
* change eval to use kpt container runtime * make eval to use kpt exec runtime
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| // Copyright 2021 Google LLC | ||
| // | ||
| // 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 fnruntime | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "context" | ||
| goerrors "errors" | ||
| "fmt" | ||
| "io" | ||
| "os/exec" | ||
| "time" | ||
|
|
||
| "github.com/GoogleContainerTools/kpt/internal/errors" | ||
| "github.com/GoogleContainerTools/kpt/internal/printer" | ||
| ) | ||
|
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| type ExecFn struct { | ||
| // Path is the os specific path to the executable | ||
| // file. It can be relative or absolute. | ||
| Path string | ||
| // Args are the arguments to the executable | ||
| Args []string | ||
| // Container function will be killed after this timeour. | ||
| // The default value is 5 minutes. | ||
| Timeout time.Duration | ||
| } | ||
|
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| // Run runs the executable file which reads the input from r and | ||
| // writes the output to w. | ||
| func (f *ExecFn) Run(r io.Reader, w io.Writer) error { | ||
| // setup exec run timeout | ||
| timeout := defaultTimeout | ||
| if f.Timeout != 0 { | ||
| timeout = f.Timeout | ||
| } | ||
| ctx, cancel := context.WithTimeout(context.Background(), timeout) | ||
| defer cancel() | ||
|
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| cmd := exec.CommandContext(ctx, f.Path, f.Args...) | ||
|
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| errSink := bytes.Buffer{} | ||
| cmd.Stdin = r | ||
| cmd.Stdout = w | ||
| cmd.Stderr = &errSink | ||
|
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| if err := cmd.Run(); err != nil { | ||
| var exitErr *exec.ExitError | ||
| if goerrors.As(err, &exitErr) { | ||
| return &errors.FnExecError{ | ||
| OriginalErr: exitErr, | ||
| ExitCode: exitErr.ExitCode(), | ||
| Stderr: errSink.String(), | ||
| TruncateOutput: printer.TruncateOutput, | ||
| } | ||
| } | ||
| return fmt.Errorf("unexpected function error: %w", err) | ||
| } | ||
|
|
||
| return nil | ||
| } |
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