func coreDump(dir string) {
c, err := loadClient()
if err != nil {
fmt.Printf("Error creating client: %v", err)
return
}
provider := testContext.Provider
// requires ssh
if !providerIs("gce", "gke") {
fmt.Printf("Skipping SSH core dump, which is not implemented for %s", provider)
return
}
// Get all nodes' external IPs.
hosts, err := ssh.NodeSSHHosts(c)
if err != nil {
fmt.Printf("Error getting node hostnames: %v", err)
return
}
cmds := []command{
{"cat /var/log/kubelet.log", "kubelet"},
{"cat /var/log/kube-proxy.log", "kube-proxy"},
{"cat /var/log/monit.log", "monit"},
}
logCore(cmds, hosts, dir, provider)
// I wish there was a better way to get the master IP...
config, err := loadConfig()
if err != nil {
fmt.Printf("Error loading config: %v")
}
ix := strings.LastIndex(config.Host, "/")
master := net.JoinHostPort(config.Host[ix+1:], "22")
cmds = []command{
{"cat /var/log/kubelet.log", "kubelet"},
{"cat /var/log/kube-apiserver.log", "kube-apiserver"},
{"cat /var/log/kube-scheduler.log", "kube-scheduler"},
{"cat /var/log/kube-controller-manager.log", "kube-controller-manager"},
{"cat /var/log/monit.log", "monit"},
}
logCore(cmds, []string{master}, dir, provider)
}
var _ = Describe("SSH", func() {
var c *client.Client
BeforeEach(func() {
var err error
c, err = loadClient()
Expect(err).NotTo(HaveOccurred())
// When adding more providers here, also implement their functionality in util.go's getSigner(...).
SkipUnlessProviderIs("gce", "gke")
})
It("should SSH to all nodes and run commands", func() {
// Get all nodes' external IPs.
By("Getting all nodes' SSH-able IP addresses")
hosts, err := ssh.NodeSSHHosts(c)
if err != nil {
Failf("Error getting node hostnames: %v", err)
}
testCases := []struct {
cmd string
checkStdout bool
expectedStdout string
expectedStderr string
expectedCode int
expectedError error
}{
{`echo "Hello"`, true, "Hello", "", 0, nil},
// Same as previous, but useful for test output diagnostics.
{`echo "Hello from $(whoami)@$(hostname)"`, false, "", "", 0, nil},