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Make generate systemd --new robust against double curly braces

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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>
This commit is contained in:
Paul Holzinger
2021-01-20 14:30:42 +01:00
parent 7d024a2fc8
commit c3cbaa355c
6 changed files with 159 additions and 56 deletions
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43
pkg/systemd/generate/pods_test.go
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@ -139,6 +139,33 @@ ExecStopPost=/usr/bin/podman pod rm --ignore -f --pod-id-file %t/pod-123abc.pod-
PIDFile=%t/pod-123abc.pid
Type=forking
[Install]
WantedBy=multi-user.target default.target
`
podNewLabelWithCurlyBraces := `# pod-123abc.service
# autogenerated by Podman CI
[Unit]
Description=Podman pod-123abc.service
Documentation=man:podman-generate-systemd(1)
Wants=network.target
After=network-online.target
Requires=container-1.service container-2.service
Before=container-1.service container-2.service
[Service]
Environment=PODMAN_SYSTEMD_UNIT=%n
Restart=on-failure
TimeoutStopSec=70
ExecStartPre=/bin/rm -f %t/pod-123abc.pid %t/pod-123abc.pod-id
ExecStartPre=/usr/bin/podman pod create --infra-conmon-pidfile %t/pod-123abc.pid --pod-id-file %t/pod-123abc.pod-id --name foo --label key={{someval}} --replace
ExecStart=/usr/bin/podman pod start --pod-id-file %t/pod-123abc.pod-id
ExecStop=/usr/bin/podman pod stop --ignore --pod-id-file %t/pod-123abc.pod-id -t 10
ExecStopPost=/usr/bin/podman pod rm --ignore -f --pod-id-file %t/pod-123abc.pod-id
PIDFile=%t/pod-123abc.pid
Type=forking
[Install]
WantedBy=multi-user.target default.target
`
@ -230,6 +257,22 @@ WantedBy=multi-user.target default.target
true,
false,
},
{"pod --new with double curly braces",
podInfo{
Executable: "/usr/bin/podman",
ServiceName: "pod-123abc",
InfraNameOrID: "jadda-jadda-infra",
RestartPolicy: "on-failure",
PIDFile: "/run/containers/storage/overlay-containers/639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401/userdata/conmon.pid",
StopTimeout: 10,
PodmanVersion: "CI",
RequiredServices: []string{"container-1", "container-2"},
CreateCommand: []string{"podman", "pod", "create", "--name", "foo", "--label", "key={{someval}}"},
},
podNewLabelWithCurlyBraces,
true,
false,
},
}
for _, tt := range tests {