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https://github.com/kubernetes-sigs/kustomize.git
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1e1b9b484a
* exec function working dir is the kustomization that referenced it * suggested changes * more code review * use a field instead of an annotation * more code review
54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
// Copyright 2019 The Kubernetes Authors.
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// SPDX-License-Identifier: Apache-2.0
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package exec
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import (
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"io"
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"os"
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"os/exec"
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"path/filepath"
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"sigs.k8s.io/kustomize/kyaml/errors"
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"sigs.k8s.io/kustomize/kyaml/fn/runtime/runtimeutil"
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"sigs.k8s.io/kustomize/kyaml/yaml"
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)
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type Filter struct {
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// Path is the path to the executable to run
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Path string `yaml:"path,omitempty"`
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// Args are the arguments to the executable
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Args []string `yaml:"args,omitempty"`
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// WorkingDir is the working directory that the executable
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// should run in
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WorkingDir string
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runtimeutil.FunctionFilter
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}
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func (c *Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
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c.FunctionFilter.Run = c.Run
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return c.FunctionFilter.Filter(nodes)
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}
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func (c *Filter) Run(reader io.Reader, writer io.Writer) error {
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cmd := exec.Command(c.Path, c.Args...)
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cmd.Stdin = reader
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cmd.Stdout = writer
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cmd.Stderr = os.Stderr
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if c.WorkingDir != "" {
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if !filepath.IsAbs(c.WorkingDir) {
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return errors.Errorf(
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"relative working directory %s not allowed", c.WorkingDir)
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}
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if c.WorkingDir == "/" {
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return errors.Errorf(
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"root working directory '/' not allowed")
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}
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cmd.Dir = c.WorkingDir
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}
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return cmd.Run()
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}
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