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|
// +build !remoteclient
package integration
import (
"os"
"path/filepath"
"text/template"
. "github.com/containers/libpod/test/utils"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var yamlTemplate = `
apiVersion: v1
kind: Pod
metadata:
creationTimestamp: "2019-07-17T14:44:08Z"
labels:
app: {{ .Name }}
name: {{ .Name }}
spec:
hostname: {{ .Hostname }}
containers:
{{ with .Ctrs }}
{{ range . }}
- command:
{{ range .Cmd }}
- {{.}}
{{ end }}
env:
- name: PATH
value: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
- name: TERM
value: xterm
- name: HOSTNAME
- name: container
value: podman
image: {{ .Image }}
name: {{ .Name }}
resources: {}
{{ if .SecurityContext }}
securityContext:
allowPrivilegeEscalation: true
{{ if .Caps }}
capabilities:
{{ with .CapAdd }}
add:
{{ range . }}
- {{.}}
{{ end }}
{{ end }}
{{ with .CapDrop }}
drop:
{{ range . }}
- {{.}}
{{ end }}
{{ end }}
{{ end }}
privileged: false
readOnlyRootFilesystem: false
workingDir: /
{{ end }}
{{ end }}
{{ end }}
status: {}
`
var (
defaultCtrName = "testCtr"
defaultCtrCmd = []string{"top"}
defaultCtrImage = ALPINE
defaultPodName = "testPod"
)
func generateKubeYaml(pod *Pod, fileName string) error {
f, err := os.Create(fileName)
if err != nil {
return err
}
defer f.Close()
t, err := template.New("pod").Parse(yamlTemplate)
if err != nil {
return err
}
if err := t.Execute(f, pod); err != nil {
return err
}
return nil
}
// Pod describes the options a kube yaml can be configured at pod level
type Pod struct {
Name string
Hostname string
Ctrs []*Ctr
}
// getPod takes a list of podOptions and returns a pod with sane defaults
// and the configured options
// if no containers are added, it will add the default container
func getPod(options ...podOption) *Pod {
p := Pod{defaultPodName, "", make([]*Ctr, 0)}
for _, option := range options {
option(&p)
}
if len(p.Ctrs) == 0 {
p.Ctrs = []*Ctr{getCtr()}
}
return &p
}
type podOption func(*Pod)
func withHostname(h string) podOption {
return func(pod *Pod) {
pod.Hostname = h
}
}
func withCtr(c *Ctr) podOption {
return func(pod *Pod) {
pod.Ctrs = append(pod.Ctrs, c)
}
}
// Ctr describes the options a kube yaml can be configured at container level
type Ctr struct {
Name string
Image string
Cmd []string
SecurityContext bool
Caps bool
CapAdd []string
CapDrop []string
}
// getCtr takes a list of ctrOptions and returns a Ctr with sane defaults
// and the configured options
func getCtr(options ...ctrOption) *Ctr {
c := Ctr{defaultCtrName, defaultCtrImage, defaultCtrCmd, true, false, nil, nil}
for _, option := range options {
option(&c)
}
return &c
}
type ctrOption func(*Ctr)
func withCmd(cmd []string) ctrOption {
return func(c *Ctr) {
c.Cmd = cmd
}
}
func withImage(img string) ctrOption {
return func(c *Ctr) {
c.Image = img
}
}
func withSecurityContext(sc bool) ctrOption {
return func(c *Ctr) {
c.SecurityContext = sc
}
}
func withCapAdd(caps []string) ctrOption {
return func(c *Ctr) {
c.CapAdd = caps
c.Caps = true
}
}
func withCapDrop(caps []string) ctrOption {
return func(c *Ctr) {
c.CapDrop = caps
c.Caps = true
}
}
var _ = Describe("Podman generate kube", func() {
var (
tempdir string
err error
podmanTest *PodmanTestIntegration
kubeYaml string
)
BeforeEach(func() {
tempdir, err = CreateTempDirInTempDir()
if err != nil {
os.Exit(1)
}
podmanTest = PodmanTestCreate(tempdir)
podmanTest.Setup()
podmanTest.SeedImages()
kubeYaml = filepath.Join(podmanTest.TempDir, "kube.yaml")
})
AfterEach(func() {
podmanTest.Cleanup()
f := CurrentGinkgoTestDescription()
processTestResult(f)
})
It("podman play kube fail with nonexist authfile", func() {
err := generateKubeYaml(getPod(), kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", "--authfile", "/tmp/nonexist", kubeYaml})
kube.WaitWithDefaultTimeout()
Expect(kube.ExitCode()).To(Not(Equal(0)))
})
It("podman play kube test correct command", func() {
err := generateKubeYaml(getPod(), kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
kube.WaitWithDefaultTimeout()
Expect(kube.ExitCode()).To(Equal(0))
inspect := podmanTest.Podman([]string{"inspect", defaultCtrName})
inspect.WaitWithDefaultTimeout()
Expect(inspect.ExitCode()).To(Equal(0))
Expect(inspect.OutputToString()).To(ContainSubstring(defaultCtrCmd[0]))
})
It("podman play kube test correct output", func() {
p := getPod(withCtr(getCtr(withCmd([]string{"echo", "hello"}))))
err := generateKubeYaml(p, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
kube.WaitWithDefaultTimeout()
Expect(kube.ExitCode()).To(Equal(0))
logs := podmanTest.Podman([]string{"logs", defaultCtrName})
logs.WaitWithDefaultTimeout()
Expect(logs.ExitCode()).To(Equal(0))
Expect(logs.OutputToString()).To(ContainSubstring("hello"))
inspect := podmanTest.Podman([]string{"inspect", defaultCtrName, "--format", "'{{ .Config.Cmd }}'"})
inspect.WaitWithDefaultTimeout()
Expect(inspect.ExitCode()).To(Equal(0))
Expect(inspect.OutputToString()).To(ContainSubstring("hello"))
})
It("podman play kube test hostname", func() {
err := generateKubeYaml(getPod(), kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
kube.WaitWithDefaultTimeout()
Expect(kube.ExitCode()).To(Equal(0))
inspect := podmanTest.Podman([]string{"inspect", defaultCtrName, "--format", "{{ .Config.Hostname }}"})
inspect.WaitWithDefaultTimeout()
Expect(inspect.ExitCode()).To(Equal(0))
Expect(inspect.OutputToString()).To(Equal(defaultPodName))
})
It("podman play kube test with customized hostname", func() {
hostname := "myhostname"
err := generateKubeYaml(getPod(withHostname(hostname)), kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
kube.WaitWithDefaultTimeout()
Expect(kube.ExitCode()).To(Equal(0))
inspect := podmanTest.Podman([]string{"inspect", defaultCtrName, "--format", "{{ .Config.Hostname }}"})
inspect.WaitWithDefaultTimeout()
Expect(inspect.ExitCode()).To(Equal(0))
Expect(inspect.OutputToString()).To(Equal(hostname))
})
It("podman play kube cap add", func() {
capAdd := "CAP_SYS_ADMIN"
ctr := getCtr(withCapAdd([]string{capAdd}), withCmd([]string{"cat", "/proc/self/status"}))
err := generateKubeYaml(getPod(withCtr(ctr)), kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
kube.WaitWithDefaultTimeout()
Expect(kube.ExitCode()).To(Equal(0))
inspect := podmanTest.Podman([]string{"inspect", defaultCtrName})
inspect.WaitWithDefaultTimeout()
Expect(inspect.ExitCode()).To(Equal(0))
Expect(inspect.OutputToString()).To(ContainSubstring(capAdd))
})
It("podman play kube cap drop", func() {
capDrop := "CAP_CHOWN"
ctr := getCtr(withCapDrop([]string{capDrop}))
err := generateKubeYaml(getPod(withCtr(ctr)), kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
kube.WaitWithDefaultTimeout()
Expect(kube.ExitCode()).To(Equal(0))
inspect := podmanTest.Podman([]string{"inspect", defaultCtrName})
inspect.WaitWithDefaultTimeout()
Expect(inspect.ExitCode()).To(Equal(0))
Expect(inspect.OutputToString()).To(ContainSubstring(capDrop))
})
It("podman play kube no security context", func() {
// expect play kube to not fail if no security context is specified
err := generateKubeYaml(getPod(withCtr(getCtr(withSecurityContext(false)))), kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
kube.WaitWithDefaultTimeout()
Expect(kube.ExitCode()).To(Equal(0))
inspect := podmanTest.Podman([]string{"inspect", defaultCtrName})
inspect.WaitWithDefaultTimeout()
Expect(inspect.ExitCode()).To(Equal(0))
})
})
|
