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path: root/libpod/options.go
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* 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>
* enable staticcheck linterPaul Holzinger2022-04-22
| | | | | | | Fix many problems reported by the staticcheck linter, including many real bugs! Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Merge pull request #13583 from rhatdan/ipcOpenShift Merge Robot2022-04-16
|\ | | | | Add support for ipc namespace modes "none, private, sharable"
| * Add support for ipc namespace modes "none, private, sharable"Daniel J Walsh2022-04-12
| | | | | | | | | | | | Fixes: #13265 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* | run, create: add --passwd-entryGiuseppe Scrivano2022-04-14
|/ | | | | | | | | It allows to customize the entry that is written to the `/etc/passwd` file when --passwd is used. Closes: https://github.com/containers/podman/issues/13185 Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* Add support for --chrootdirsLStandman2022-03-14
| | | | Signed-off-by: LStandman <65296484+LStandman@users.noreply.github.com>
* Implement Podman Container Clonecdoern2022-02-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | podman container clone takes the id of an existing continer and creates a specgen from the given container's config recreating all proper namespaces and overriding spec options like resource limits and the container name if given in the cli options this command utilizes the common function DefineCreateFlags meaning that we can funnel as many create options as we want into clone over time allowing the user to clone with as much or as little of the original config as they want. container clone takes a second argument which is a new name and a third argument which is an image name to use instead of the original container's the current supported flags are: --destroy (remove the original container) --name (new ctr name) --cpus (sets cpu period and quota) --cpuset-cpus --cpu-period --cpu-rt-period --cpu-rt-runtime --cpu-shares --cpuset-mems --memory --run resolves #10875 Signed-off-by: cdoern <cdoern@redhat.com> Signed-off-by: cdoern <cbdoer23@g.holycross.edu> Signed-off-by: cdoern <cdoern@redhat.com>
* Podman pod create --share-parent vs --share=cgroupcdoern2022-02-03
| | | | | | | | | | | | | | separated cgroupNS sharing from setting the pod as the cgroup parent, made a new flag --share-parent which sets the pod as the cgroup parent for all containers entering the pod remove cgroup from the default kernel namespaces since we want the same default behavior as before which is just the cgroup parent. resolves #12765 Signed-off-by: cdoern <cdoern@redhat.com> Signed-off-by: cdoern <cbdoer23@g.holycross.edu> Signed-off-by: cdoern <cdoern@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>
* Standardize on capatalized CgroupsDaniel J Walsh2022-01-14
| | | | Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Merge pull request #12642 from Luap99/libnetworkOpenShift Merge Robot2022-01-13
|\ | | | | use libnetwork from c/common
| * 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 events_logfile_path from containers.conf for events log.Daniel J Walsh2022-01-13
|/ | | | Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Remove dead RuntimeOption functionsDaniel J Walsh2022-01-10
| | | | | | | | | | I don't see where these With Functions are used, so removing them to clean up code. WithDefaultInfra* functions screwed me up and confused me. [NO NEW TESTS NEEDED] Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Pod Security Option supportcdoern2021-12-27
| | | | | | | | | | | | | Added support for pod security options. These are applied to infra and passed down to the containers as added (unless overridden). Modified the inheritance process from infra, creating a new function Inherit() which reads the config, and marshals the compatible options into an intermediate struct `InfraInherit` This is then unmarshaled into a container config and all of this is added to the CtrCreateOptions. Removes the need (mostly) for special additons which complicate the Container_create code and pod creation. resolves #12173 Signed-off-by: cdoern <cdoern@redhat.com>
* Allow users to add host user accounts to /etc/passwdDaniel J Walsh2021-12-23
| | | | | | | | | | | Some containers require certain user account(s) to exist within the container when they are run. This option will allow callers to add a bunch of passwd entries from the host to the container even if the entries are not in the local /etc/passwd file on the host. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1935831 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Podman run --passwdcdoern2021-12-21
| | | | | | | | | added support for a new flag --passwd which, when false prohibits podman from creating entries in /etc/passwd and /etc/groups allowing users to modify those files in the container entrypoint resolves #11805 Signed-off-by: cdoern <cdoern@redhat.com>
* Add new networks format to spegecenPaul Holzinger2021-12-14
| | | | | | | | Add the new networks format to specgen. For api users cni_networks is still supported to make migration easier however the static ip and mac fields are removed. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* network db: add new strucutre to container createPaul Holzinger2021-12-14
| | | | | | | | | | Make sure we create new containers in the db with the correct structure. Also remove some unneeded code for alias handling. We no longer need this functions. The specgen format has not been changed for now. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Make sure netavark output is logged to the syslogPaul Holzinger2021-11-19
| | | | | | | Create a custom writer which logs the netavark output to logrus. This will log to the syslog when it is enabled. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Do not store the exit command in container configPaul Holzinger2021-11-18
| | | | | | | | | | | | | | | | | | | There is a problem with creating and storing the exit command when the container was created. It only contains the options the container was created with but NOT the options the container is started with. One example would be a CNI network config. If I start a container once, then change the cni config dir with `--cni-config-dir` ans start it a second time it will start successfully. However the exit command still contains the wrong `--cni-config-dir` because it was not updated. To fix this we do not want to store the exit command at all. Instead we create it every time the conmon process for the container is startet. This guarantees us that the container cleanup process is startet with the correct settings. [NO NEW TESTS NEEDED] Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Add flag to overwrite network backend from configPaul Holzinger2021-11-11
| | | | | | | To make testing easier we can overwrite the network backend with the global `--network-backend` option. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Merge pull request #11890 from Luap99/portsOpenShift Merge Robot2021-11-06
|\ | | | | libpod: deduplicate ports in db
| * 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>
* | MAC address json unmarshal should allow stringsPaul Holzinger2021-11-03
|/ | | | | | | | | Create a new mac address type which supports json marshal/unmarshal from and to string. This change is backwards compatible with the previous versions as the unmarshal method still accepts the old byte array or base64 encoded string. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Update vendor github.com/opencontainers/runtime-toolsDaniel J Walsh2021-10-25
| | | | | | | | | This will change mount of /dev within container to noexec, making containers slightly more secure. [NO NEW TESTS NEEDED] Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Allow API to specify size and inode quotaDaniel J Walsh2021-10-18
| | | | | | | | | | | Fixes: https://github.com/containers/podman/issues/11016 [NO NEW TESTS NEEDED] We have no easy way to tests this in CI/CD systems. Requires quota to be setup on directories to work. Fixes: https://github.com/containers/podman/issues/11016 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* logging: new mode -l passthroughGiuseppe Scrivano2021-09-27
| | | | | | | | | | it allows to pass the current std streams down to the container. conmon support: https://github.com/containers/conmon/pull/289 [NO TESTS NEEDED] it needs a new conmon. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* Pod Device Supportcdoern2021-09-20
| | | | | | | | | | added support for pod devices. The device gets added to the infra container and recreated in all containers that join the pod. This required a new container config item to keep track of the original device passed in by the user before the path was parsed into the container device. Signed-off-by: cdoern <cdoern@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>
* rootfs: Add support for rootfs-overlay and bump to buildah v1.22.1-0.202108flouthoc2021-09-14
| | | | | | | | | | Allows users to specify a readonly rootfs with :O, in exchange podman will create a writable overlay. bump builah to v1.22.1-0.20210823173221-da2b428c56ce [NO TESTS NEEDED] Signed-off-by: flouthoc <flouthoc.git@gmail.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>
* podman inspect show exposed portsPaul Holzinger2021-08-24
| | | | | | | | | | | | | | Podman inspect has to show exposed ports to match docker. This requires storing the exposed ports in the container config. A exposed port is shown as `"80/tcp": null` while a forwarded port is shown as `"80/tcp": [{"HostIp": "", "HostPort": "8080" }]`. Also make sure to add the exposed ports to the new image when the container is commited. Fixes #10777 Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* libpod/option.go remove error stutter from wrap/wrafflouthoc2021-08-17
| | | | | [NO TESTS NEEDED] Signed-off-by: flouthoc <flouthoc.git@gmail.com>
* volume: move validating volume dest from client to server.flouthoc2021-08-16
| | | | | | [NO TESTS NEEDED] Signed-off-by: flouthoc <flouthoc.git@gmail.com>
* Add support for pod inside of user namespace.Daniel J Walsh2021-08-09
| | | | | | | | | | | | | Add the --userns flag to podman pod create and keep track of the userns setting that pod was created with so that all containers created within the pod will inherit that userns setting. Specifically we need to be able to launch a pod with --userns=keep-id Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
* Merge pull request #11011 from baude/initcontainersopenshift-ci[bot]2021-08-05
|\ | | | | implement init containers in podman
| * implement init containers in podmanBrent Baude2021-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | this is the first pass at implementing init containers for podman pods. init containersare made popular by k8s as a way to run setup for pods before the pods standard containers run. unlike k8s, we support two styles of init containers: always and oneshot. always means the container stays in the pod and starts whenever a pod is started. this does not apply to pods restarting. oneshot means the container runs onetime when the pod starts and then is removed. Signed-off-by: Brent Baude <bbaude@redhat.com>
* | Support size and inode options on builtin volumesDaniel J Walsh2021-08-02
|/ | | | | | | | [NO TESTS NEEDED] Since it is difficult to setup xfs quota Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1982164 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* --infra-name command line argumentJosé Guilherme Vanz2021-07-15
| | | | | | | | | Adds the new --infra-name command line argument allowing users to define the name of the infra container Issue #10794 Signed-off-by: José Guilherme Vanz <jvanz@jvanz.com>
* podman pod create --pid flagcdoern2021-07-15
| | | | | | | | added support for --pid flag. User can specify ns:file, pod, private, or host. container returns an error since you cannot point the ns of the pods infra container to a container outside of the pod. Signed-off-by: cdoern <cdoern@redhat.com>
* Podman Pod Create --cpus and --cpuset-cpus flagscdoern2021-06-23
| | | | | | | | | | | | Added logic and handling for two new Podman pod create Flags. --cpus specifies the total number of cores on which the pod can execute, this is a combination of the period and quota for the CPU. --cpuset-cpus is a string value which determines of these available cores, how many we will truly execute on. Signed-off-by: cdoern <cbdoer23@g.holycross.edu>
* fix systemcontext to use correct TMPDIRDaniel J Walsh2021-06-18
| | | | | | | | | | | Users are complaining about read/only /var/tmp failing even if TMPDIR=/tmp is set. This PR Fixes: https://github.com/containers/podman/issues/10698 [NO TESTS NEEDED] No way to test this. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Fix volumes with uid and gid optionsPaul Holzinger2021-06-11
| | | | | | | | | | | | | | | | Podman uses the volume option map to check if it has to mount the volume or not when the container is started. Commit 28138dafcc39 added to uid and gid options to this map, however when only uid/gid is set we cannot mount this volume because there is no filesystem or device specified. Make sure we do not try to mount the volume when only the uid/gid option is set since this is a simple chown operation. Also when a uid/gid is explicity set, do not chown the volume based on the container user when the volume is used for the first time. Fixes #10620 Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Support uid,gid,mode options for secretsAshley Cui2021-05-17
| | | | | | | Support UID, GID, Mode options for mount type secrets. Also, change default secret permissions to 444 so all users can read secret. Signed-off-by: Ashley Cui <acui@redhat.com>
* Merge pull request #10221 from ashley-cui/envsecOpenShift Merge Robot2021-05-07
|\ | | | | Add support for environment variable secrets
| * Add support for environment variable secretsAshley Cui2021-05-06
| | | | | | | | | | | | | | | | Env var secrets are env vars that are set inside the container but not commited to and image. Also support reading from env var when creating a secret. Signed-off-by: Ashley Cui <acui@redhat.com>
* | podman: set volatile storage flag for --rm containersGiuseppe Scrivano2021-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | volatile containers are a storage optimization that disables *sync() syscalls for the container rootfs. If a container is created with --rm, then automatically set the volatile storage flag as anyway the container won't persist after a reboot or machine crash. [NO TESTS NEEDED] Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* | Merge pull request #10119 from rhatdan/timeoutOpenShift Merge Robot2021-04-27
|\ \ | |/ |/| Add podman run --timeout option
| * Add podman run --timeout optionDaniel J Walsh2021-04-23
| | | | | | | | | | | | | | | | | | This option allows users to specify the maximum amount of time to run before conmon sends the kill signal to the container. Fixes: https://github.com/containers/podman/issues/6412 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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