From 71a46764041da966805dfb40cc0f2a89a2848307 Mon Sep 17 00:00:00 2001 From: baude Date: Wed, 4 Nov 2020 11:50:18 -0600 Subject: rootless container creation settings when running container creation as rootless on the compatibility layer, we need to make sure settings are not being done for memory and memory swappiness. Signed-off-by: baude --- cmd/podman/common/create_opts.go | 41 +++++++++++++++++++++++++++------------- 1 file changed, 28 insertions(+), 13 deletions(-) (limited to 'cmd/podman') diff --git a/cmd/podman/common/create_opts.go b/cmd/podman/common/create_opts.go index 05bb9de13..8b2efc988 100644 --- a/cmd/podman/common/create_opts.go +++ b/cmd/podman/common/create_opts.go @@ -7,7 +7,9 @@ import ( "strings" "github.com/containers/podman/v2/pkg/api/handlers" + "github.com/containers/podman/v2/pkg/cgroups" "github.com/containers/podman/v2/pkg/domain/entities" + "github.com/containers/podman/v2/pkg/rootless" "github.com/containers/podman/v2/pkg/specgen" ) @@ -129,7 +131,7 @@ func stringMaptoArray(m map[string]string) []string { // ContainerCreateToContainerCLIOpts converts a compat input struct to cliopts so it can be converted to // a specgen spec. -func ContainerCreateToContainerCLIOpts(cc handlers.CreateContainerConfig) (*ContainerCLIOpts, []string, error) { +func ContainerCreateToContainerCLIOpts(cc handlers.CreateContainerConfig, cgroupsManager string) (*ContainerCLIOpts, []string, error) { var ( capAdd []string cappDrop []string @@ -346,16 +348,23 @@ func ContainerCreateToContainerCLIOpts(cc handlers.CreateContainerConfig) (*Cont Systemd: "true", // podman default TmpFS: stringMaptoArray(cc.HostConfig.Tmpfs), TTY: cc.Config.Tty, - //Ulimit: cc.HostConfig.Ulimits, // ask dan, no documented format - Ulimit: []string{"nproc=4194304:4194304"}, - User: cc.Config.User, - UserNS: string(cc.HostConfig.UsernsMode), - UTS: string(cc.HostConfig.UTSMode), - Mount: mounts, - Volume: volumes, - VolumesFrom: cc.HostConfig.VolumesFrom, - Workdir: cc.Config.WorkingDir, - Net: &netInfo, + User: cc.Config.User, + UserNS: string(cc.HostConfig.UsernsMode), + UTS: string(cc.HostConfig.UTSMode), + Mount: mounts, + Volume: volumes, + VolumesFrom: cc.HostConfig.VolumesFrom, + Workdir: cc.Config.WorkingDir, + Net: &netInfo, + } + if !rootless.IsRootless() { + var ulimits []string + if len(cc.HostConfig.Ulimits) > 0 { + for _, ul := range cc.HostConfig.Ulimits { + ulimits = append(ulimits, ul.String()) + } + cliOpts.Ulimit = ulimits + } } if len(cc.HostConfig.BlkioWeightDevice) > 0 { @@ -377,7 +386,11 @@ func ContainerCreateToContainerCLIOpts(cc handlers.CreateContainerConfig) (*Cont cliOpts.MemoryReservation = strconv.Itoa(int(cc.HostConfig.MemoryReservation)) } - if cc.HostConfig.MemorySwap > 0 { + cgroupsv2, err := cgroups.IsCgroup2UnifiedMode() + if err != nil { + return nil, nil, err + } + if cc.HostConfig.MemorySwap > 0 && (!rootless.IsRootless() || (rootless.IsRootless() && cgroupsv2)) { cliOpts.MemorySwap = strconv.Itoa(int(cc.HostConfig.MemorySwap)) } @@ -401,8 +414,10 @@ func ContainerCreateToContainerCLIOpts(cc handlers.CreateContainerConfig) (*Cont cliOpts.Restart = policy } - if cc.HostConfig.MemorySwappiness != nil { + if cc.HostConfig.MemorySwappiness != nil && (!rootless.IsRootless() || rootless.IsRootless() && cgroupsv2 && cgroupsManager == "systemd") { cliOpts.MemorySwappiness = *cc.HostConfig.MemorySwappiness + } else { + cliOpts.MemorySwappiness = -1 } if cc.HostConfig.OomKillDisable != nil { cliOpts.OOMKillDisable = *cc.HostConfig.OomKillDisable -- cgit v1.2.3-54-g00ecf