使用golang检索crio信息

问题描述

我正在尝试使用golang检索cri-o信息，例如containerID，pid。下面提到的代码在我的Mac中可用，但是当我对其进行容器化并将其部署在openshift 3.11堆栈上时，它将无法工作。

下文提到的代码中的

cmdstr可以是任何docker或cri-o命令，例如docker ps或crictl ps --no-trunc -a --quiet

使用的go版本为go1.14.1 darwin/amd64

package main

import "os/exec"
import "fmt"

func main() {
    cmdstr := "docker ps"
    fmt.Printf("cmdstr is %s",cmdstr)
    out,_ := exec.Command("/bin/sh","-c",cmdstr).Output()
    fmt.Printf("output is %s",out)
}

我在Mac上获得的上述代码的输出是

cmdstr is docker ps
output is CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

在podshift日志中，openshift 3.11上的相同之处是：

cmdstr is docker ps
output is

另一个选择是在此链接中使用代码：https://godoc.org/github.com/google/cadvisor/container/crio#pkg-subdirectories，但我不确定如何使用它，下面的示例会有所帮助。

go get github.com/google/cadvisor/container/crio

github.com/opencontainers/runc/libcontainer/cgroups/v1_utils.go:86:31: undefined: unix.CGROUP_SUPER_MAGIC
github.com/opencontainers/runc/libcontainer/cgroups/v1_utils.go:95:5: undefined: IsCgroup2UnifiedMode
github.com/opencontainers/runc/libcontainer/cgroups/v1_utils.go:109:5: undefined: IsCgroup2UnifiedMode
github.com/opencontainers/runc/libcontainer/cgroups/v1_utils.go:151:5: undefined: IsCgroup2UnifiedMode
github.com/opencontainers/runc/libcontainer/cgroups/v1_utils.go:155:18: undefined: ParseCgroupFile
github.com/opencontainers/runc/libcontainer/cgroups/v1_utils.go:163:9: undefined: Mount
github.com/opencontainers/runc/libcontainer/cgroups/v1_utils.go:171:75: undefined: Mount
github.com/opencontainers/runc/libcontainer/cgroups/v1_utils.go:172:16: undefined: Mount
github.com/opencontainers/runc/libcontainer/cgroups/v1_utils.go:185:8: undefined: Mount
github.com/opencontainers/runc/libcontainer/cgroups/v1_utils.go:209:37: undefined: Mount
github.com/opencontainers/runc/libcontainer/cgroups/v1_utils.go:185:8: too many errors
# github.com/opencontainers/runc/libcontainer/utils
github.com/opencontainers/runc/libcontainer/utils/utils_unix.go:19:17: undefined: unix.PROC_SUPER_MAGIC
github.com/opencontainers/runc/libcontainer/utils/utils_unix.go:63:62: undefined: unix.soCK_CLOEXEC

解决方法

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