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feat: read targets from stdin #35

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merged 1 commit into from
Mar 27, 2024
Merged

feat: read targets from stdin #35

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13 changes: 9 additions & 4 deletions cmd/client/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -68,11 +68,16 @@ func (o *Options) Run(ctx context.Context, args []string) error {

var targets []target
if len(o.targetsFile) > 0 {
fin, err := os.Open(o.targetsFile)
if err != nil {
return err
var fin *os.File
if o.targetsFile == "-" {
fin = os.Stdin
} else {
fin, err = os.Open(o.targetsFile)
if err != nil {
return err
}
defer fin.Close()
}
defer fin.Close()
targets, err = parseTargetsFile(fin, ns)
if err != nil {
return err
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3 changes: 3 additions & 0 deletions cmd/client/template.go
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,9 @@ func example() string {

# Create the agent in the kube-public namespace, and forward local port 5000 to "1.2.3.4:5000"
{{.Name}} --server.namespace kube-public ip/1.2.3.4 5000

# Forward traffic to multiple targets
echo 'ip/1.2.3.4 5000\nsvc/my-service 8080:80\n-n kube-system deploy/coredns 5353:53@udp' | {{.Name}} -f -
`
tpl, err := template.New("example").Parse(text)
if err != nil {
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