54 lines
1.4 KiB
Go
54 lines
1.4 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package runtime
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import (
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"net/url"
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"os"
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"os/exec"
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)
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// NewBinaryCmd returns a Cmd to be used to start a logging binary.
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// The Cmd is generated from the provided uri, and the container ID and
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// namespace are appended to the Cmd environment.
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func NewBinaryCmd(binaryURI *url.URL, id, ns string) *exec.Cmd {
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var args []string
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for k, vs := range binaryURI.Query() {
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args = append(args, k)
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if len(vs) > 0 {
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args = append(args, vs[0])
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}
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}
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cmd := exec.Command(binaryURI.Path, args...)
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cmd.Env = append(cmd.Env,
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"CONTAINER_ID="+id,
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"CONTAINER_NAMESPACE="+ns,
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)
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return cmd
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}
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// CloseFiles closes any files passed in.
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// It it used for cleanup in the event of unexpected errors.
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func CloseFiles(files ...*os.File) {
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for _, file := range files {
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file.Close()
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}
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}
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