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https://github.com/containers/podman.git
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c3cbaa355c
If the container create command contains an argument with double
curly braces the golang template parsing can fail since it tries
to interpret the value as variable. To fix this change the default
delimiter for the internal template to `{{{{`.
Fixes #9034
Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
101 lines
2.8 KiB
Go
101 lines
2.8 KiB
Go
package generate
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import (
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"strconv"
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"strings"
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"github.com/pkg/errors"
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)
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// EnvVariable "PODMAN_SYSTEMD_UNIT" is set in all generated systemd units and
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// is set to the unit's (unique) name.
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const EnvVariable = "PODMAN_SYSTEMD_UNIT"
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// minTimeoutStopSec is the minimal stop timeout for generated systemd units.
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// Once exceeded, processes of the services are killed and the cgroup(s) are
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// cleaned up.
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const minTimeoutStopSec = 60
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// RestartPolicies includes all valid restart policies to be used in a unit
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// file.
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var RestartPolicies = []string{"no", "on-success", "on-failure", "on-abnormal", "on-watchdog", "on-abort", "always"}
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// validateRestartPolicy checks that the user-provided policy is valid.
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func validateRestartPolicy(restart string) error {
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for _, i := range RestartPolicies {
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if i == restart {
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return nil
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}
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}
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return errors.Errorf("%s is not a valid restart policy", restart)
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}
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const headerTemplate = `# {{{{.ServiceName}}}}.service
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# autogenerated by Podman {{{{.PodmanVersion}}}}
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{{{{- if .TimeStamp}}}}
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# {{{{.TimeStamp}}}}
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{{{{- end}}}}
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[Unit]
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Description=Podman {{{{.ServiceName}}}}.service
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Documentation=man:podman-generate-systemd(1)
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Wants=network.target
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After=network-online.target
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`
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// filterPodFlags removes --pod and --pod-id-file from the specified command.
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func filterPodFlags(command []string) []string {
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processed := []string{}
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for i := 0; i < len(command); i++ {
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s := command[i]
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if s == "--pod" || s == "--pod-id-file" {
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i++
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continue
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}
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if strings.HasPrefix(s, "--pod=") || strings.HasPrefix(s, "--pod-id-file=") {
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continue
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}
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processed = append(processed, s)
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}
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return processed
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}
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// quoteArguments makes sure that all arguments with at least one whitespace
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// are quoted to make sure those are interpreted as one argument instead of
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// multiple ones.
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func quoteArguments(command []string) []string {
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for i := range command {
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if strings.ContainsAny(command[i], " \t") {
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command[i] = strconv.Quote(command[i])
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}
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}
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return command
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}
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func removeDetachArg(args []string, argCount int) []string {
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// "--detach=false" could also be in the container entrypoint
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// split them off so we do not remove it there
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realArgs := args[len(args)-argCount:]
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flagArgs := removeArg("-d=false", args[:len(args)-argCount])
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flagArgs = removeArg("--detach=false", flagArgs)
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return append(flagArgs, realArgs...)
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}
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func removeReplaceArg(args []string, argCount int) []string {
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// "--replace=false" could also be in the container entrypoint
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// split them off so we do not remove it there
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realArgs := args[len(args)-argCount:]
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flagArgs := removeArg("--replace=false", args[:len(args)-argCount])
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return append(flagArgs, realArgs...)
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}
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func removeArg(arg string, args []string) []string {
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newArgs := []string{}
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for _, a := range args {
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if a != arg {
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newArgs = append(newArgs, a)
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}
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}
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return newArgs
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}
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