mirror of https://github.com/kubernetes/kops.git
kubetest2 - add support for dumping k8s resources via SSH
Some of our jobs are currently failing because `kops validate cluster` times out waiting for the k8s API DNS record to be updated. To assist in troubleshooting, we can get insight into the k8s resources present on the cluster even though the DNS record hasnt been set if we use kubectl on the control plane host via SSH. This will SSH into a control plane host when the local kubectl dump fails.
This commit is contained in:
Peter Rifel
parent
66edcba37b
commit
5526744471
|
|
@ -144,7 +144,9 @@ github.com/GoogleCloudPlatform/testgrid v0.0.10/go.mod h1:lmtHGBL0M/MLbu1tR9BWV7
|
|||
github.com/GoogleCloudPlatform/testgrid v0.0.22/go.mod h1:KGQ3wqPuX1xCqeSHvcGmAafuMtV7cRNST9hZS7VCahA=
|
||||
github.com/GoogleCloudPlatform/testgrid v0.0.38/go.mod h1:KGQ3wqPuX1xCqeSHvcGmAafuMtV7cRNST9hZS7VCahA=
|
||||
github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
|
||||
github.com/MakeNowJust/heredoc v0.0.0-20170808103936-bb23615498cd h1:sjQovDkwrZp8u+gxLtPgKGjk5hCxuy2hrRejBTA9xFU=
|
||||
github.com/MakeNowJust/heredoc v0.0.0-20170808103936-bb23615498cd/go.mod h1:64YHyfSL2R96J44Nlwm39UHepQbyR5q10x7iYa1ks2E=
|
||||
github.com/MakeNowJust/heredoc/v2 v2.0.1 h1:rlCHh70XXXv7toz95ajQWOWQnN4WNLt0TdpZYIR/J6A=
|
||||
github.com/MakeNowJust/heredoc/v2 v2.0.1/go.mod h1:6/2Abh5s+hc3g9nbWLe9ObDIOhaRrqsyY9MWy+4JdRM=
|
||||
github.com/Masterminds/goutils v1.1.0/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU=
|
||||
github.com/Masterminds/goutils v1.1.1/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU=
|
||||
|
|
@ -304,6 +306,7 @@ github.com/containerd/continuity v0.0.0-20201208142359-180525291bb7/go.mod h1:kR
|
|||
github.com/containerd/fifo v0.0.0-20190226154929-a9fb20d87448/go.mod h1:ODA38xgv3Kuk8dQz2ZQXpnv/UZZUHUCL7pnLehbXgQI=
|
||||
github.com/containerd/go-runc v0.0.0-20180907222934-5a6d9f37cfa3/go.mod h1:IV7qH3hrUgRmyYrtgEeGWJfWbgcHL9CSRruz2Vqcph0=
|
||||
github.com/containerd/stargz-snapshotter/estargz v0.0.0-20201217071531-2b97b583765b/go.mod h1:E9uVkkBKf0EaC39j2JVW9EzdNhYvpz6eQIjILHebruk=
|
||||
github.com/containerd/stargz-snapshotter/estargz v0.4.1 h1:5e7heayhB7CcgdTkqfZqrNaNv15gABwr3Q2jBTbLlt4=
|
||||
github.com/containerd/stargz-snapshotter/estargz v0.4.1/go.mod h1:x7Q9dg9QYb4+ELgxmo4gBUeJB0tl5dqH1Sdz0nJU1QM=
|
||||
github.com/containerd/ttrpc v0.0.0-20190828154514-0e0f228740de/go.mod h1:PvCDdDGpgqzQIzDW1TphrGLssLDZp2GuS+X5DkEJB8o=
|
||||
github.com/containerd/typeurl v0.0.0-20180627222232-a93fcdb778cd/go.mod h1:Cm3kwCdlkCfMSHURc+r6fwoGH6/F1hH3S4sg0rLFWPc=
|
||||
|
|
@ -361,8 +364,10 @@ github.com/djherbis/atime v1.0.0/go.mod h1:5W+KBIuTwVGcqjIfaTwt+KSYX1o6uep8dteve
|
|||
github.com/dnaeon/go-vcr v1.0.1/go.mod h1:aBB1+wY4s93YsC3HHjMBMrwTj2R9FHDzUr9KyGc8n1E=
|
||||
github.com/docker/cli v0.0.0-20191017083524-a8ff7f821017/go.mod h1:JLrzqnKDaYBop7H2jaqPtU4hHvMKP+vjCwu2uszcLI8=
|
||||
github.com/docker/cli v0.0.0-20200130152716-5d0cf8839492/go.mod h1:JLrzqnKDaYBop7H2jaqPtU4hHvMKP+vjCwu2uszcLI8=
|
||||
github.com/docker/cli v20.10.5+incompatible h1:bjflayQbWg+xOkF2WPEAOi4Y7zWhR7ptoPhV/VqLVDE=
|
||||
github.com/docker/cli v20.10.5+incompatible/go.mod h1:JLrzqnKDaYBop7H2jaqPtU4hHvMKP+vjCwu2uszcLI8=
|
||||
github.com/docker/distribution v0.0.0-20191216044856-a8371794149d/go.mod h1:0+TTO4EOBfRPhZXAeF1Vu+W3hHZ8eLp8PgKVZlcvtFY=
|
||||
github.com/docker/distribution v2.7.1+incompatible h1:a5mlkVzth6W5A4fOsS3D2EO5BUmsJpcB+cRlLU7cSug=
|
||||
github.com/docker/distribution v2.7.1+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
|
||||
github.com/docker/docker v0.7.3-0.20190327010347-be7ac8be2ae0/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
|
||||
github.com/docker/docker v1.4.2-0.20190924003213-a8608b5b67c7/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
|
||||
|
|
@ -371,6 +376,7 @@ github.com/docker/docker v1.4.2-0.20200203170920-46ec8731fbce/go.mod h1:eEKB0N0r
|
|||
github.com/docker/docker v17.12.0-ce-rc1.0.20200618181300-9dc6525e6118+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
|
||||
github.com/docker/docker v20.10.6+incompatible h1:oXI3Vas8TI8Eu/EjH4srKHJBVqraSzJybhxY7Om9faQ=
|
||||
github.com/docker/docker v20.10.6+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
|
||||
github.com/docker/docker-credential-helpers v0.6.3 h1:zI2p9+1NQYdnG6sMU26EX4aVGlqbInSQxQXLvzJ4RPQ=
|
||||
github.com/docker/docker-credential-helpers v0.6.3/go.mod h1:WRaJzqw3CTB9bk10avuGsjVBZsD05qeibJ1/TYlvc0Y=
|
||||
github.com/docker/go-connections v0.4.0/go.mod h1:Gbd7IOopHjR8Iph03tsViu4nIes5XhDvyHbTtUxmeec=
|
||||
github.com/docker/go-metrics v0.0.0-20180209012529-399ea8c73916/go.mod h1:/u0gXw0Gay3ceNrsHubL3BtdOL2fHf93USgMTe0W5dI=
|
||||
|
|
@ -652,6 +658,7 @@ github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
|
|||
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
|
||||
github.com/google/go-containerregistry v0.0.0-20200115214256-379933c9c22b/go.mod h1:Wtl/v6YdQxv397EREtzwgd9+Ud7Q5D8XMbi3Zazgkrs=
|
||||
github.com/google/go-containerregistry v0.3.0/go.mod h1:BJ7VxR1hAhdiZBGGnvGETHEmFs1hzXc4VM1xjOPO9wA=
|
||||
github.com/google/go-containerregistry v0.5.1 h1:/+mFTs4AlwsJ/mJe8NDtKb7BxLtbZFpcn8vDsneEkwQ=
|
||||
github.com/google/go-containerregistry v0.5.1/go.mod h1:Ct15B4yir3PLOP5jsy0GNeYVaIZs/MK/Jz5any1wFW0=
|
||||
github.com/google/go-github v17.0.0+incompatible h1:N0LgJ1j65A7kfXrZnUDaYCs/Sf4rEjNlfyDHW9dolSY=
|
||||
github.com/google/go-github v17.0.0+incompatible/go.mod h1:zLgOLi98H3fifZn+44m+umXrS52loVEgC2AApnigrVQ=
|
||||
|
|
@ -1590,6 +1597,7 @@ golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJ
|
|||
golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
|
||||
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sys v0.0.0-20170830134202-bb24a47a89ea/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20180117170059-2c42eef0765b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
|
|
@ -2044,8 +2052,10 @@ gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c/go.mod h1:K4uyk7z7BCEPqu6E+C
|
|||
gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
||||
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
|
||||
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
||||
gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
|
||||
gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
|
||||
gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
|
||||
gotest.tools/v3 v3.0.3 h1:4AuOwCGf4lLR9u3YOe2awrHygurzhO/HeQ6laiA6Sx0=
|
||||
gotest.tools/v3 v3.0.3/go.mod h1:Z7Lb0S5l+klDB31fvDQX8ss/FlKDxtlFlw3Oa8Ymbl8=
|
||||
helm.sh/helm/v3 v3.1.1/go.mod h1:WYsFJuMASa/4XUqLyv54s0U/f3mlAaRErGmyy4z921g=
|
||||
helm.sh/helm/v3 v3.6.1/go.mod h1:mIIus8EOqj+obtycw3sidsR4ORr2aFDmXMSI3k+oeVY=
|
||||
|
|
@ -2114,6 +2124,7 @@ k8s.io/utils v0.0.0-20200729134348-d5654de09c73/go.mod h1:jPW/WVKK9YHAvNhRxK0md/
|
|||
k8s.io/utils v0.0.0-20200912215256-4140de9c8800/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
|
||||
k8s.io/utils v0.0.0-20201110183641-67b214c5f920/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
|
||||
k8s.io/utils v0.0.0-20210111153108-fddb29f9d009/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
|
||||
k8s.io/utils v0.0.0-20210802155522-efc7438f0176 h1:Mx0aa+SUAcNRQbs5jUzV8lkDlGFU8laZsY9jrcVX5SY=
|
||||
k8s.io/utils v0.0.0-20210802155522-efc7438f0176/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
|
||||
knative.dev/caching v0.0.0-20200116200605-67bca2c83dfa/go.mod h1:dHXFU6CGlLlbzaWc32g80cR92iuBSpsslDNBWI8C7eg=
|
||||
knative.dev/eventing-contrib v0.11.2/go.mod h1:SnXZgSGgMSMLNFTwTnpaOH7hXDzTFtw0J8OmHflNx3g=
|
||||
|
|
|
|||
|
|
@ -17,12 +17,14 @@ limitations under the License.
|
|||
package deployer
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"os"
|
||||
"path"
|
||||
"strings"
|
||||
|
||||
"k8s.io/klog/v2"
|
||||
"k8s.io/kops/pkg/resources"
|
||||
"sigs.k8s.io/kubetest2/pkg/exec"
|
||||
)
|
||||
|
||||
|
|
@ -90,12 +92,88 @@ func (d *deployer) dumpClusterInfo() error {
|
|||
|
||||
cmd := exec.Command(args[0], args[1:]...)
|
||||
cmd.SetEnv(d.env()...)
|
||||
if err := cmd.Run(); err != nil {
|
||||
if err = d.dumpClusterInfoSSH(); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// dumpClusterInfoSSH runs `kubectl cluster-info dump` on a control plane host via SSH
|
||||
// and copies the output to the local artifacts directory.
|
||||
// This can be useful when the k8s API is inaccessible from kubetest2-kops directly
|
||||
func (d *deployer) dumpClusterInfoSSH() error {
|
||||
toolboxDumpArgs := []string{
|
||||
d.KopsBinaryPath, "toolbox", "dump",
|
||||
"--name", d.ClusterName,
|
||||
"--private-key", d.SSHPrivateKeyPath,
|
||||
"--ssh-user", d.SSHUser,
|
||||
"-o", "yaml",
|
||||
}
|
||||
cmd := exec.Command(toolboxDumpArgs[0], toolboxDumpArgs[1:]...)
|
||||
dumpOutput, err := exec.Output(cmd)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
var dump *resources.Dump
|
||||
err = json.Unmarshal(dumpOutput, dump)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
controlPlaneIP, controlPlaneUser, found := findControlPlaneIPUser(dump)
|
||||
if !found {
|
||||
return nil
|
||||
}
|
||||
|
||||
sshURL := fmt.Sprintf("%v@%v", controlPlaneUser, controlPlaneIP)
|
||||
sshArgs := []string{
|
||||
"ssh", "-i", d.SSHPrivateKeyPath, sshURL,
|
||||
"kubectl", "cluster-info", "dump",
|
||||
"--all-namespaces",
|
||||
"-o", "yaml",
|
||||
"--output-directory", "/tmp/cluster-info",
|
||||
}
|
||||
cmd = exec.Command(sshArgs[0], sshArgs[1:]...)
|
||||
if err := cmd.Run(); err != nil {
|
||||
return err
|
||||
}
|
||||
scpArgs := []string{
|
||||
"scp", "-i", d.SSHPrivateKeyPath, "-r",
|
||||
fmt.Sprintf("%v:/tmp/cluster-info", sshURL),
|
||||
path.Join(d.ArtifactsDir, "cluster-info"),
|
||||
}
|
||||
cmd = exec.Command(scpArgs[0], scpArgs[1:]...)
|
||||
if err := cmd.Run(); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
rmArgs := []string{
|
||||
"ssh", "-i", d.SSHPrivateKeyPath, sshURL,
|
||||
"rm", "-rf", "/tmp/cluster-info",
|
||||
}
|
||||
cmd = exec.Command(rmArgs[0], rmArgs[1:]...)
|
||||
if err := cmd.Run(); err != nil {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func findControlPlaneIPUser(dump *resources.Dump) (string, string, bool) {
|
||||
for _, instance := range dump.Instances {
|
||||
if len(instance.PublicAddresses) == 0 {
|
||||
continue
|
||||
}
|
||||
for _, role := range instance.Roles {
|
||||
if role == "master" {
|
||||
return instance.PublicAddresses[0], instance.SSHUser, true
|
||||
}
|
||||
}
|
||||
}
|
||||
klog.Warning("ControlPlane instance not found from kops toolbox dump")
|
||||
return "", "", false
|
||||
}
|
||||
|
||||
func runWithOutput(cmd exec.Cmd) error {
|
||||
exec.InheritOutput(cmd)
|
||||
return cmd.Run()
|
||||
|
|
|
|||
Loading…
Reference in New Issue