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path: root/libpod/kube.go
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* Add ports and hostname correctly in kube yamlUrvashi Mohnani2022-07-08
| | | | | | | | | | | | If a pod is created without net sharing, allow adding separate ports for each container to the kube yaml and also set the pod level hostname correctly if the uts namespace is not being shared. Add a warning if the default namespace sharing options have been modified by the user. Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
* libpod: switch to golang native error wrappingSascha Grunert2022-07-05
| | | | | | | | | We now use the golang error wrapping format specifier `%w` instead of the deprecated github.com/pkg/errors package. [NO NEW TESTS NEEDED] Signed-off-by: Sascha Grunert <sgrunert@redhat.com>
* golangci-lint: enable nolintlintPaul Holzinger2022-06-14
| | | | | | | | | | The nolintlint linter does not deny the use of `//nolint` Instead it allows us to enforce a common nolint style: - force that a linter name must be specified - do not add a space between `//` and `nolint` - make sure nolint is only used when there is actually a problem Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Use containers/common/pkg/util.StringToSliceDaniel J Walsh2022-05-23
| | | | | | [NO NEW TESTS NEEDED] Just code cleanup for better reuse Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* enable errcheck linterPaul Holzinger2022-04-29
| | | | | | | | The errcheck linter makes sure that errors are always check and not ignored by accident. It spotted a lot of unchecked errors, mostly in the tests but also some real problem in the code. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Merge pull request #14023 from rhatdan/kubeOpenShift Merge Robot2022-04-27
|\ | | | | Truncate annotations when generating kubernetes yaml files
| * Truncate annotations when generating kubernetes yaml filesDaniel J Walsh2022-04-27
| | | | | | | | | | | | | | | | | | | | | | | | Kubernetes only allows 63 characters in an annotation. Make sure that we only add 63 or less charaters when generating kube. Warn if containers or pods have longer length and truncate. Discussion: https://github.com/containers/podman/discussions/13901 Fixes: https://github.com/containers/podman/issues/13962 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* | enable gocritic linterPaul Holzinger2022-04-26
|/ | | | | | | | | | | | | | | | | | | | | | The linter ensures a common code style. - use switch/case instead of else if - use if instead of switch/case for single case statement - add space between comment and text - detect the use of defer with os.Exit() - use short form var += "..." instead of var = var + "..." - detect problems with append() ``` newSlice := append(orgSlice, val) ``` This could lead to nasty bugs because the orgSlice will be changed in place if it has enough capacity too hold the new elements. Thus we newSlice might not be a copy. Of course most of the changes are just cosmetic and do not cause any logic errors but I think it is a good idea to enforce a common style. This should help maintainability. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Modify the pod name suffix '_pod' to '-pod'aonoa2022-04-25
| | | | Signed-off-by: aonoa <1991849113@qq.com>
* replace golint with revive linterPaul Holzinger2022-04-22
| | | | | | | | | | | | golint, scopelint and interfacer are deprecated. golint is replaced by revive. This linter is better because it will also check for our error style: `error strings should not be capitalized or end with punctuation or a newline` scopelint is replaced by exportloopref (already endabled) interfacer has no replacement but I do not think this linter is important. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* fix pod volume passing and alter infra inheritancecdoern2022-03-29
| | | | | | | | | | | | | the infra Inherit function was not properly passing pod volume information to new containers alter the inherit function and struct to use the new `ConfigToSpec` function used in clone pick and choose the proper entities from a temp spec and validate them on the spegen side rather than passing directly to a config resolves #13548 Signed-off-by: cdoern <cbdoer23@g.holycross.edu> Signed-off-by: cdoern <cdoern@redhat.com> Signed-off-by: cdoern <cbdoer23@g.holycross.edu>
* move k8s deps into podmanPaul Holzinger2022-03-15
| | | | | | | | We only need a small part of the k8s dependencies but they are the biggest dependencies in podman by far. Moving them into podman allows us to remove the unnecessary parts. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* bump go module to version 4Valentin Rothberg2022-01-18
| | | | | | | | | | | | | Automated for .go files via gomove [1]: `gomove github.com/containers/podman/v3 github.com/containers/podman/v4` Remaining files via vgrep [2]: `vgrep github.com/containers/podman/v3` [1] https://github.com/KSubedi/gomove [2] https://github.com/vrothberg/vgrep Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* use libnetwork from c/commonPaul Holzinger2022-01-12
| | | | | | | | The libpod/network packages were moved to c/common so that buildah can use it as well. To prevent duplication use it in podman as well and remove it from here. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Use the InfraImage defined in containers.confDaniel J Walsh2022-01-10
| | | | | | | | | Remove hard code use of the DefaultInfraImage and rely on getting this from containers.conf. Fixes: https://github.com/containers/podman/issues/12771 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* fix(generate): fix up podman generate kube missing env field bug荒野無燈2021-12-18
| | | | | | | | the logic is: if the process env vars key exists in podman default or in image defined, and the value is equal, skip the env var key. the typo make it compare to itself -_- so, here comes the simple fixup. Signed-off-by: 荒野無燈 <ttys3.rust@gmail.com>
* Ensure the generated NodePort values are uniqueMiloslav Trmač2021-11-30
| | | | | | | | | | | ... at least within a single service. [NO NEW TESTS NEEDED] because testing RNGs is problematic. (We _could_ probably inject a mock RNG implementation that always returns the same value, or something like that.) Signed-off-by: Miloslav Trmač <mitr@redhat.com>
* Allow containerPortsToServicePorts to failMiloslav Trmač2021-11-30
| | | | | | | | Add an error return to it and affected callers. Should not affect behavior, the function can't currently fail. Signed-off-by: Miloslav Trmač <mitr@redhat.com>
* Don't use the global math/rand RNG for service portsMiloslav Trmač2021-11-30
| | | | | | | | | | Use a private RNG with the desired seed, don't interfere with the other uses. Introducing the servicePortState type is rather overkill for the single member, but we'll add another one immediately. Signed-off-by: Miloslav Trmač <mitr@redhat.com>
* Move a comment to the relevant placeMiloslav Trmač2021-11-30
| | | | Signed-off-by: Miloslav Trmač <mitr@redhat.com>
* Rename pod on generate of containerBrent Baude2021-11-22
| | | | | | | | | When generating kube of a container, the podname and container name in the yaml are identical. This offends rules in podman where pods and containers cannot have the same name. We now append _pod to the podname to avoid that collision. Signed-off-by: Brent Baude <bbaude@redhat.com>
* podman-generate-kube - remove empty structs from YAMLBoaz Shuster2021-11-07
| | | | | | [NO NEW TESTS NEEDED] Signed-off-by: Boaz Shuster <boaz.shuster.github@gmail.com>
* libpod: deduplicate ports in dbPaul Holzinger2021-10-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The OCICNI port format has one big problem: It does not support ranges. So if a users forwards a range of 1k ports with podman run -p 1001-2000 we have to store each of the thousand ports individually as array element. This bloats the db and makes the JSON encoding and decoding much slower. In many places we already use a better port struct type which supports ranges, e.g. `pkg/specgen` or the new network interface. Because of this we have to do many runtime conversions between the two port formats. If everything uses the new format we can skip the runtime conversions. This commit adds logic to replace all occurrences of the old format with the new one. The database will automatically migrate the ports to new format when the container config is read for the first time after the update. The `ParsePortMapping` function is `pkg/specgen/generate` has been reworked to better work with the new format. The new logic is able to deduplicate the given ports. This is necessary the ensure we store them efficiently in the DB. The new code should also be more performant than the old one. To prove that the code is fast enough I added go benchmarks. Parsing 1 million ports took less than 0.5 seconds on my laptop. Benchmark normalize PortMappings in specgen: Please note that the 1 million ports are actually 20x 50k ranges because we cannot have bigger ranges than 65535 ports. ``` $ go test -bench=. -benchmem ./pkg/specgen/generate/ goos: linux goarch: amd64 pkg: github.com/containers/podman/v3/pkg/specgen/generate cpu: Intel(R) Core(TM) i7-10850H CPU @ 2.70GHz BenchmarkParsePortMappingNoPorts-12 480821532 2.230 ns/op 0 B/op 0 allocs/op BenchmarkParsePortMapping1-12 38972 30183 ns/op 131584 B/op 9 allocs/op BenchmarkParsePortMapping100-12 18752 60688 ns/op 141088 B/op 315 allocs/op BenchmarkParsePortMapping1k-12 3104 331719 ns/op 223840 B/op 3018 allocs/op BenchmarkParsePortMapping10k-12 376 3122930 ns/op 1223650 B/op 30027 allocs/op BenchmarkParsePortMapping1m-12 3 390869926 ns/op 124593840 B/op 4000624 allocs/op BenchmarkParsePortMappingReverse100-12 18940 63414 ns/op 141088 B/op 315 allocs/op BenchmarkParsePortMappingReverse1k-12 3015 362500 ns/op 223841 B/op 3018 allocs/op BenchmarkParsePortMappingReverse10k-12 343 3318135 ns/op 1223650 B/op 30027 allocs/op BenchmarkParsePortMappingReverse1m-12 3 403392469 ns/op 124593840 B/op 4000624 allocs/op BenchmarkParsePortMappingRange1-12 37635 28756 ns/op 131584 B/op 9 allocs/op BenchmarkParsePortMappingRange100-12 39604 28935 ns/op 131584 B/op 9 allocs/op BenchmarkParsePortMappingRange1k-12 38384 29921 ns/op 131584 B/op 9 allocs/op BenchmarkParsePortMappingRange10k-12 29479 40381 ns/op 131584 B/op 9 allocs/op BenchmarkParsePortMappingRange1m-12 927 1279369 ns/op 143022 B/op 164 allocs/op PASS ok github.com/containers/podman/v3/pkg/specgen/generate 25.492s ``` Benchmark convert old port format to new one: ``` go test -bench=. -benchmem ./libpod/ goos: linux goarch: amd64 pkg: github.com/containers/podman/v3/libpod cpu: Intel(R) Core(TM) i7-10850H CPU @ 2.70GHz Benchmark_ocicniPortsToNetTypesPortsNoPorts-12 663526126 1.663 ns/op 0 B/op 0 allocs/op Benchmark_ocicniPortsToNetTypesPorts1-12 7858082 141.9 ns/op 72 B/op 2 allocs/op Benchmark_ocicniPortsToNetTypesPorts10-12 2065347 571.0 ns/op 536 B/op 4 allocs/op Benchmark_ocicniPortsToNetTypesPorts100-12 138478 8641 ns/op 4216 B/op 4 allocs/op Benchmark_ocicniPortsToNetTypesPorts1k-12 9414 120964 ns/op 41080 B/op 4 allocs/op Benchmark_ocicniPortsToNetTypesPorts10k-12 781 1490526 ns/op 401528 B/op 4 allocs/op Benchmark_ocicniPortsToNetTypesPorts1m-12 4 250579010 ns/op 40001656 B/op 4 allocs/op PASS ok github.com/containers/podman/v3/libpod 11.727s ``` Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* pod create: remove need for pause imageValentin Rothberg2021-10-26
| | | | | | | | | So far, the infra containers of pods required pulling down an image rendering pods not usable in disconnected environments. Instead, build an image locally which uses local pause binary. Fixes: #10354 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Generate Kube should not print default structsDaniel J Walsh2021-10-19
| | | | | | | | | | | | | | | | | | | | If podman uses Workdir="/" or the workdir specified in the image, it should not add it to the yaml. If Podman find environment variables in the image, they should not get added to the yaml. If the container or pod do not have changes to SELinux we should not print seLinuxOpt{} If the container or pod do not change any dns options the yaml should not have a dnsOption={} If the container is not privileged it should not have privileged=false in the yaml. Fixes: https://github.com/containers/podman/issues/11995 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Merge pull request #11982 from umohnani8/targetPortOpenShift Merge Robot2021-10-15
|\ | | | | Set targetPort to the port value in the kube yaml
| * Set targetPort to the port value in the kube yamlUrvashi Mohnani2021-10-14
| | | | | | | | | | | | | | | | | | | | When the targetPort is not defined, it is supposed to be set to the port value according to the k8s docs. Add tests for targetPort. Update tests to be able to check the Service yaml that is generated. Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
* | Do not add TCP to protocol in generated kube yamlUrvashi Mohnani2021-10-14
|/ | | | | | | | | | As the default protocol in k8s is TCP, don't add it to the generate yaml when using protocol. Add UDP to the protocol of the generated yaml when udp is being used. Add tests for this as well. Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
* Don't add image entrypoint to the generate kube yamlUrvashi Mohnani2021-10-13
| | | | | | | | | | | | If no entrypoint or command is set in the podman create command, and the image command or entrypoint is being used as the default, then do not add the image command or entrypoint to the generated kube yaml. Kubernetes knows to default to the image command and/or entrypoint settings when not defined in the kube yaml. Add and modify tests for this case. Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
* Merge pull request #11944 from cdoern/kubeEmitOpenShift Merge Robot2021-10-13
|\ | | | | Kube Gen run as user/group issues
| * Kube Gen run as user/group issuescdoern2021-10-12
| | | | | | | | | | | | | | | | | | Removed the inclusion of RunAsUser or RunAsGroup unless a container is run with the --user flag. When building from an image the user will be pulled from there anyway resolves #11914 Signed-off-by: cdoern <cdoern@redhat.com>
* | No space in kube annotations for bind mountsBrent Baude2021-10-12
|/ | | | | | | | | | | Kubernetes fails to deal with an annotation that has a space in it. Trim these strings to remove spaces. Fixes: #11929 Signed-off-by: Brent Baude <bbaude@redhat.com> [NO TESTS NEEDED]
* faster image inspectionValentin Rothberg2021-10-08
| | | | | | | | | | | | | | Vendor the latest HEAD in c/common to pull in changes for a faster inspection of images. Previously, only the size computation was optional, now the one for the parent image is as well. In many cases, the parent image is not needed but it takes around 10ms on my local machine. With this change, we cut off 10ms from many code paths, most importantly, container creation. [NO NEW TESTS NEEDED] Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Support selinux options with bind mounts play/genBrent Baude2021-09-30
| | | | | | | | | | | | When using play kube and generate kube, we need to support if bind mounts have selinux options. As kubernetes does not support selinux in this way, we tuck the selinux values into a pod annotation for generation of the kube yaml. Then on play, we check annotations to see if a value for the mount exists and apply it. Fixes BZ #1984081 Signed-off-by: Brent Baude <bbaude@redhat.com>
* Merge pull request #11781 from vrothberg/specOpenShift Merge Robot2021-09-29
|\ | | | | podman run - avoid calls to JSONDeepCopy
| * libpod: do not call (*container).Spec()Valentin Rothberg2021-09-29
| | | | | | | | | | | | | | | | | | | | | | | | Access the container's spec field directly inside of libpod instead of calling Spec() which in turn creates expensive JSON deep copies. Accessing the field directly drops memory consumption of a simple podman run --rm busybox true from ~700kB to ~600kB. [NO TESTS NEEDED] Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* | Merge pull request #11761 from umohnani8/initOpenShift Merge Robot2021-09-29
|\ \ | |/ |/| Add port configuration to first regular container
| * [NO TESTS NEEDED] Add port configuration to first regular containerUrvashi Mohnani2021-09-28
| | | | | | | | | | | | | | | | When generating a kube yaml and there is a port configuration add the configuration to the first regular container in the pod and not to the init container. Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
* | libpod: do not call (*container).Config()Valentin Rothberg2021-09-28
|/ | | | | | | | | | | | Access the container's config field directly inside of libpod instead of calling `Config()` which in turn creates expensive JSON deep copies. Accessing the field directly drops memory consumption of a simple `podman run --rm busybox true` from 1245kB to 410kB. [NO TESTS NEEDED] Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* podman generate kube should not include images commandDaniel J Walsh2021-09-22
| | | | | | | | | If the command came from the underlying image, then we should not include it in the generate yaml file. Fixes: https://github.com/containers/podman/issues/11672 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Generate kube should'd add podman default environment varsDaniel J Walsh2021-09-21
| | | | | | | | Currently we add the default PATH, TERM and container from Podman to every kubernetes.yaml file. These values should not be recorded in the yaml files. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Drop OCICNI dependencyPaul Holzinger2021-09-15
| | | | | | | | | | | We do not use the ocicni code anymore so let's get rid of it. Only the port struct is used but we can copy this into libpod network types so we can debloat the binary. The next step is to remove the OCICNI port mapping form the container config and use the better PortMapping struct everywhere. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Add init containers to generate and play kubeUrvashi Mohnani2021-09-10
| | | | | | | | | | | | | | | Kubernetes has a concept of init containers that run and exit before the regular containers in a pod are started. We added init containers to podman pods as well. This patch adds support for generating init containers in the kube yaml when a pod we are converting had init containers. When playing a kube yaml, it detects an init container and creates such a container in podman accordingly. Note, only init containers created with the init type set to "always" will be generated as the "once" option deletes the init container after it has run and exited. Play kube will always creates init containers with the "always" init container type. Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
* InfraContainer Reworkcdoern2021-08-26
| | | | | | | | | | InfraContainer should go through the same creation process as regular containers. This change was from the cmd level down, involving new container CLI opts and specgen creating functions. What now happens is that both container and pod cli options are populated in cmd and used to create a podSpecgen and a containerSpecgen. The process then goes as follows FillOutSpecGen (infra) -> MapSpec (podOpts -> infraOpts) -> PodCreate -> MakePod -> createPodOptions -> NewPod -> CompleteSpec (infra) -> MakeContainer -> NewContainer -> newContainer -> AddInfra (to pod state) Signed-off-by: cdoern <cdoern@redhat.com>
* Adds support to preserve auto update labels in generate and play kubeEduardo Vega2021-05-06
| | | | | | In the case of generate kube the auto-update labels will be converted into kube annotations and for play kube they will be converted back to labels since that's what podman understands Signed-off-by: Eduardo Vega <edvegavalerio@gmail.com>
* Fixes generate kube incorrect when bind-mounting "/" and "/root"zhangguanzhang2021-04-26
| | | | Signed-off-by: zhangguanzhang <zhangguanzhang@qq.com>
* Add support for play/generate kube volumesEduardo Vega2021-04-09
| | | | Signed-off-by: Eduardo Vega <edvegavalerio@gmail.com>
* Generate Kubernetes PersistentVolumeClaims from named volumesJordan Williams2021-03-19
| | | | | | | | | | | | Fixes #5788 This commit adds support for named volumes in podman-generate-kube. Named volumes are output in the YAML as PersistentVolumeClaims. To avoid naming conflicts, the volume name is suffixed with "-pvc". This commit adds a corresponding suffix for host path mounts. Host path volumes are suffixed with "-host". Signed-off-by: Jordan Williams <jordan@jwillikers.com>
* Do not leak libpod package into the remote clientPaul Holzinger2021-03-15
| | | | | | | | | | | | | | | | | | Some packages used by the remote client imported the libpod package. This is not wanted because it adds unnecessary bloat to the client and also causes problems with platform specific code(linux only), see #9710. The solution is to move the used functions/variables into extra packages which do not import libpod. This change shrinks the remote client size more than 6MB compared to the current master. [NO TESTS NEEDED] I have no idea how to test this properly but with #9710 the cross compile should fail. Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* Allow users to generate a kubernetes yaml off non running containersDaniel J Walsh2021-03-08
| | | | | | | | | | | | | | | Currently if you attempt to create a kube.yaml file off of a non running container where the container runs as a specific User, the creation fails because the storage container is not mounted. Podman is supposed to read the /etc/passwd entry inside of the container but since the container is not mounted, the c.State.Mountpoint == "". Podman incorrectly attempts to read /etc/passwd on the host, and fails if the specified user is not in the hosts /etc/passwd. This PR mounts the storage container, if it was not mounted so the read succeeds. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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