wip: new flag --static-ip to allow random IP #13050

medyagh · 2021-11-29T21:30:39Z

trying to help a user on slack who wanted to have two minikube clusters on the same docker network

Chris Tomkins:bird: Today at 9:56 AM
I have a need (for lab purposes only) to create two Minikube clusters on the same Docker bridge, e.g.:
minikube -p cluster-a start --network-plugin=cni --extra-config=kubeadm.pod-network-cidr=10.200.0.0/16 --service-cluster-ip-range=10.201.0.0/16 --network cttest
minikube -p cluster-b start --network-plugin=cni --extra-config=kubeadm.pod-network-cidr=10.210.0.0/16 --service-cluster-ip-range=10.211.0.0/16 --network cttest```

example usage:

$ mk start --static-ip=false
😄  minikube v1.24.0 on Darwin 12.0.1 (arm64)
✨  Automatically selected the docker driver
👍  Starting control plane node minikube in cluster minikube
🚜  Pulling base image ...
💾  Downloading Kubernetes v1.22.4 preload ...
    > preloaded-images-k8s-v14-v1...: 252.09 MiB / 252.09 MiB  100.00% 29.13 Mi
🔥  Creating docker container (CPUs=2, Memory=1988MB) ...
🐳  Preparing Kubernetes v1.22.4 on Docker 20.10.8 ...
❌  Unable to load cached images: loading cached images: stat /Users/medya/.minikube/cache/images/k8s.gcr.io/kube-proxy_v1.22.4: no such file or directory
    ▪ Generating certificates and keys ...
    ▪ Booting up control plane ...
    ▪ Configuring RBAC rules ...
🔎  Verifying Kubernetes components...
    ▪ Using image gcr.io/k8s-minikube/storage-provisioner:v5
🌟  Enabled addons: storage-provisioner, default-storageclass
🏄  Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default

k8s-ci-robot · 2021-11-29T21:31:25Z

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: medyagh

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medyagh · 2021-11-29T21:31:49Z

here is the link to the binary from a PR that I think might fix this issue, do you mind trying it out ?

https://storage.googleapis.com/minikube-builds/13050/minikube-linux-amd64
https://storage.googleapis.com/minikube-builds/13050/minikube-darwin-amd64
https://storage.googleapis.com/minikube-builds/13050/minikube-windows-amd64.exe

If you could please try delete first then setting static-ip to false

./minikube-darwin-amd64 delete --all
./minikube-darwin-amd64 start--static-ip=false --netwrok=cttest

sharifelgamal · 2021-11-29T22:11:26Z

/ok-to-test

minikube-pr-bot · 2021-11-29T23:36:09Z

kvm2 driver with docker runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 13050) |
+----------------+----------+---------------------+
| minikube start | 46.6s    | 46.0s               |
| enable ingress | 30.6s    | 30.6s               |
+----------------+----------+---------------------+

Times for minikube start: 48.1s 45.7s 45.6s 45.9s 47.8s
Times for minikube (PR 13050) start: 48.1s 45.8s 46.4s 45.2s 44.8s

Times for minikube ingress: 31.7s 30.7s 30.2s 29.9s 30.3s
Times for minikube (PR 13050) ingress: 30.7s 30.8s 31.8s 30.2s 29.7s

docker driver with docker runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 13050) |
+----------------+----------+---------------------+
| minikube start | 20.8s    | 21.3s               |
| enable ingress | 30.6s    | 30.3s               |
+----------------+----------+---------------------+

Times for minikube start: 19.7s 20.2s 21.5s 21.6s 21.0s
Times for minikube (PR 13050) start: 20.9s 20.5s 21.3s 21.3s 22.6s

Times for minikube (PR 13050) ingress: 27.9s 27.9s 26.9s 33.9s 34.9s
Times for minikube ingress: 25.9s 34.9s 35.4s 28.4s 28.4s

docker driver with containerd runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 13050) |
+----------------+----------+---------------------+
| minikube start | 41.0s    | 40.7s               |
| enable ingress | 28.2s    | 25.9s               |
+----------------+----------+---------------------+

Times for minikube start: 41.1s 40.2s 42.1s 40.9s 40.8s
Times for minikube (PR 13050) start: 41.2s 40.5s 40.5s 41.4s 39.7s

Times for minikube ingress: 17.9s 21.9s 36.4s 32.4s 32.4s
Times for minikube (PR 13050) ingress: 32.4s 28.4s 18.4s 32.4s 17.9s

minikube-pr-bot · 2021-11-30T00:53:59Z

These are the flake rates of all failed tests.

Environment	Failed Tests	Flake Rate (%)
Docker_Linux_containerd	TestMultiNode/serial/RestartKeepsNodes (gopogh)	0.00 (chart)
Docker_Linux	TestMultiNode/serial/RestartKeepsNodes (gopogh)	0.00 (chart)
Docker_macOS	TestMultiNode/serial/RestartKeepsNodes (gopogh)	0.00 (chart)
Hyperkit_macOS	TestAddons/parallel/Registry (gopogh)	0.00 (chart)
Hyperkit_macOS	TestFunctional/parallel/MountCmd/any-port (gopogh)	0.00 (chart)
Hyperkit_macOS	TestAddons/serial/GCPAuth (gopogh)	0.80 (chart)
Hyperkit_macOS	TestAddons/parallel/CSI (gopogh)	1.60 (chart)
Hyperkit_macOS	TestFunctional/parallel/TunnelCmd/serial/AccessDirect (gopogh)	2.40 (chart)
Hyperkit_macOS	TestFunctional/parallel/TunnelCmd/serial/AccessThroughDNS (gopogh)	2.40 (chart)
Hyperkit_macOS	TestFunctional/parallel/TunnelCmd/serial/WaitService/Setup (gopogh)	2.40 (chart)
Hyperkit_macOS	TestFunctional/parallel/PersistentVolumeClaim (gopogh)	5.60 (chart)
Hyperkit_macOS	TestIngressAddonLegacy/serial/ValidateIngressAddonActivation (gopogh)	6.40 (chart)
Hyperkit_macOS	TestFunctional/parallel/ImageCommands/ImageBuild (gopogh)	8.00 (chart)
Docker_macOS	TestStartStop/group/default-k8s-different-port/serial/SecondStart (gopogh)	28.92 (chart)
Docker_Linux	TestFunctional/serial/ComponentHealth (gopogh)	28.93 (chart)
Docker_macOS	TestFunctional/serial/ComponentHealth (gopogh)	36.50 (chart)
Docker_macOS	TestFunctional/serial/ExtraConfig (gopogh)	36.50 (chart)
Hyper-V_Windows	TestMultiNode/serial/CopyFile (gopogh)	46.97 (chart)
Docker_macOS	TestNetworkPlugins/group/kubenet/DNS (gopogh)	72.16 (chart)
Docker_macOS	TestNetworkPlugins/group/kindnet/Start (gopogh)	73.64 (chart)
Docker_macOS	TestNetworkPlugins/group/bridge/DNS (gopogh)	73.79 (chart)
Docker_macOS	TestNetworkPlugins/group/enable-default-cni/DNS (gopogh)	75.45 (chart)
Docker_macOS	TestNetworkPlugins/group/calico/Start (gopogh)	78.29 (chart)
Hyper-V_Windows	TestNoKubernetes/serial/StartNoArgs (gopogh)	92.94 (chart)
Docker_macOS	TestDownloadOnly/v1.16.0/preload-exists (gopogh)	100.00 (chart)
Hyper-V_Windows	TestMultiNode/serial/PingHostFrom2Pods (gopogh)	100.00 (chart)
Hyper-V_Windows	TestMultiNode/serial/RestartKeepsNodes (gopogh)	100.00 (chart)
Hyper-V_Windows	TestRunningBinaryUpgrade (gopogh)	100.00 (chart)
Hyper-V_Windows	TestStoppedBinaryUpgrade/Upgrade (gopogh)	100.00 (chart)

To see the flake rates of all tests by environment, click here.

k8s-triage-robot · 2021-11-30T03:47:52Z

Unknown CLA label state. Rechecking for CLA labels.

Send feedback to sig-contributor-experience at kubernetes/community.

/check-cla

cdtomkins · 2021-11-30T10:02:55Z

That seems to work perfectly! Thanks. I will now continue on to build the lab scenario and let you know if I encounter anything else:

chris @ chris-work ~/2021_11/cluster_peer_demo 
└─526─▶ kubectl --cluster=cluster-a get nodes -o wide
NAME            STATUS   ROLES                  AGE     VERSION   INTERNAL-IP   EXTERNAL-IP   OS-IMAGE             KERNEL-VERSION      CONTAINER-RUNTIME
cluster-a       Ready    control-plane,master   7m50s   v1.22.4   172.17.0.3    <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
cluster-a-m02   Ready    <none>                 5m7s    v1.22.4   172.17.0.5    <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
cluster-a-m03   Ready    <none>                 4m52s   v1.22.4   172.17.0.6    <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
cluster-a-m04   Ready    <none>                 4m37s   v1.22.4   172.17.0.7    <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
cluster-a-m05   Ready    <none>                 30s     v1.22.4   172.17.0.12   <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
chris @ chris-work ~/2021_11/cluster_peer_demo 
└─527─▶ kubectl --cluster=cluster-b get nodes -o wide
NAME            STATUS   ROLES                  AGE     VERSION   INTERNAL-IP   EXTERNAL-IP   OS-IMAGE             KERNEL-VERSION      CONTAINER-RUNTIME
cluster-b       Ready    control-plane,master   6m7s    v1.22.4   172.17.0.4    <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
cluster-b-m02   Ready    <none>                 3m35s   v1.22.4   172.17.0.8    <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
cluster-b-m03   Ready    <none>                 2m50s   v1.22.4   172.17.0.9    <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
cluster-b-m04   Ready    <none>                 2m22s   v1.22.4   172.17.0.10   <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
cluster-b-m05   Ready    <none>                 52s     v1.22.4   172.17.0.11   <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8

cdtomkins · 2021-11-30T10:50:45Z

This is great but I think I have found an issue.

I created two clusters like this:

minikube -p cluster-a start --network-plugin=cni --static-ip=false --extra-config=kubeadm.pod-network-cidr=10.200.0.0/16 --service-cluster-ip-range=10.201.0.0/16 --network=sharedlayer2
minikube -p cluster-b start --network-plugin=cni --static-ip=false --extra-config=kubeadm.pod-network-cidr=10.210.0.0/16 --service-cluster-ip-range=10.211.0.0/16 --network=sharedlayer2

A "sharedlayer2" docker bridge was created as expected, but it wasn't actually used (ignore the "NotReady" state, this is unrelated):

chris @ chris-work ~/2021_11/cluster_peer_demo 
└─645─▶ kubectl --cluster=cluster-b get nodes -o wide
NAME            STATUS     ROLES                  AGE     VERSION   INTERNAL-IP   EXTERNAL-IP   OS-IMAGE             KERNEL-VERSION      CONTAINER-RUNTIME
cluster-b       Ready      control-plane,master   2m28s   v1.22.4   172.17.0.7    <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
cluster-b-m02   Ready      <none>                 2m10s   v1.22.4   172.17.0.8    <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
cluster-b-m03   NotReady   <none>                 116s    v1.22.4   172.17.0.9    <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
cluster-b-m04   NotReady   <none>                 103s    v1.22.4   172.17.0.10   <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
chris @ chris-work ~/2021_11/cluster_peer_demo 
└─646─▶ kubectl --cluster=cluster-a get nodes -o wide 
NAME            STATUS   ROLES                  AGE   VERSION   INTERNAL-IP   EXTERNAL-IP   OS-IMAGE             KERNEL-VERSION      CONTAINER-RUNTIME
cluster-a       Ready    control-plane,master   13m   v1.22.4   172.17.0.3    <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
cluster-a-m02   Ready    <none>                 13m   v1.22.4   172.17.0.4    <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
cluster-a-m03   Ready    <none>                 13m   v1.22.4   172.17.0.5    <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
cluster-a-m04   Ready    <none>                 12m   v1.22.4   172.17.0.6    <none>        Ubuntu 20.04.2 LTS   5.11.0-40-generic   docker://20.10.8
chris @ chris-work ~/2021_11/cluster_peer_demo 
└─647─▶ docker network ls
NETWORK ID     NAME           DRIVER    SCOPE
b3e6611f0f48   bridge         bridge    local
8bc049c4e960   host           host      local
477a1639b48e   none           null      local
9ecc3b9b22ea   sharedlayer2   bridge    local
chris @ chris-work ~/2021_11/cluster_peer_demo 
└─648─▶ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.11.10.1      0.0.0.0         UG    600    0        0 wlp0s20f3
10.11.10.0      0.0.0.0         255.255.255.0   U     600    0        0 wlp0s20f3
10.230.34.0     0.0.0.0         255.255.255.0   U     0      0        0 mpqemubr0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 wlp0s20f3
172.17.0.0      0.0.0.0         255.255.0.0     U     0      0        0 docker0
192.168.49.0    0.0.0.0         255.255.255.0   U     0      0        0 br-9ecc3b9b22ea

medyagh · 2021-12-07T22:32:50Z

thank you for ur patience on this repsonse.

minikube -p cluster-a start --network-plugin=cni --static-ip=false --extra-config=kubeadm.pod-network-cidr=10.200.0.0/16 --service-cluster-ip-range=10.201.0.0/16 --network=sharedlayer2

@cdtomkins I am curious are u applying your own CNI ?

❗  With --network-plugin=cni, you will need to provide your own CNI. See --cni flag as a user-friendly alternative

you could choose one of minikube cnis for example minikube start--cni="calico"

and also is there a reason you want two different clusters use same cidr for pods? that could collide?

--extra-config=kubeadm.pod-network-cidr=10.200.0.0/16 --service-cluster-ip-range=10.201.0.0/16

in your output I see multi nodes but ur minikube start command does not have flags for creating multi nodes...

have u tried on a fresh start ( delete --all) and then try two single nodes share the same network ?

medyagh · 2021-12-07T22:42:15Z

@cdtomkins

for me for single node it seems to be working


14:33:00 medya/workspace/minikube
static_ip2 ✓
$ minikube -p cluster-a start --network-plugin=cni --static-ip=false --extra-config=kubeadm.pod-network-cidr=10.200.0.0/16 --service-cluster-ip-range=10.201.0.0/16 --network=sharedlayer2
Error: unknown flag: --static-ip
See 'minikube start --help' for usage.
14:33:16 medya/workspace/minikube
static_ip2 ✓
$ mk -p cluster-a start --network-plugin=cni --static-ip=false --extra-config=kubeadm.pod-network-cidr=10.200.0.0/16 --service-cluster-ip-range=10.201.0.0/16 --network=sharedlayer2
😄  [cluster-a] minikube v1.24.0 on Darwin 12.0.1 (arm64)
✨  Automatically selected the docker driver
❗  With --network-plugin=cni, you will need to provide your own CNI. See --cni flag as a user-friendly alternative
👍  Starting control plane node cluster-a in cluster cluster-a
🚜  Pulling base image ...
🔥  Creating docker container (CPUs=2, Memory=1988MB) ...
🐳  Preparing Kubernetes v1.22.4 on Docker 20.10.8 ...
    ▪ kubeadm.pod-network-cidr=10.200.0.0/16
❌  Unable to load cached images: loading cached images: stat /Users/medya/.minikube/cache/images/k8s.gcr.io/coredns/coredns_v1.8.4: no such file or directory
    ▪ Generating certificates and keys ...
    ▪ Booting up control plane ...
    ▪ Configuring RBAC rules ...
🔎  Verifying Kubernetes components...
    ▪ Using image gcr.io/k8s-minikube/storage-provisioner:v5
🌟  Enabled addons: storage-provisioner, default-storageclass
🏄  Done! kubectl is now configured to use "cluster-a" cluster and "default" namespace by default
14:36:39 medya/workspace/minikube
static_ip2 ✓
$ kc get pods -A
NAMESPACE     NAME                                READY   STATUS              RESTARTS   AGE
kube-system   coredns-78fcd69978-mv568            0/1     ContainerCreating   0          33s
kube-system   etcd-cluster-a                      1/1     Running             0          43s
kube-system   kube-apiserver-cluster-a            1/1     Running             0          43s
kube-system   kube-controller-manager-cluster-a   1/1     Running             0          43s
kube-system   kube-proxy-ktf87                    1/1     Running             0          33s
kube-system   kube-scheduler-cluster-a            1/1     Running             0          46s
kube-system   storage-provisioner                 1/1     Running             0          40s
14:37:18 medya/workspace/minikube
static_ip2 ✓
$ docker netwrok ls
docker: 'netwrok' is not a docker command.
See 'docker --help'
14:37:32 medya/workspace/minikube
static_ip2 ✓
$ docker network ls
NETWORK ID     NAME           DRIVER    SCOPE
cfd291543106   bridge         bridge    local
a4cf62200f82   host           host      local
28c81f724c0f   none           null      local
1683a6526772   sharedlayer2   bridge    local
14:37:36 medya/workspace/minikube
static_ip2 ✓
$ minikube -p cluster-b start --network-plugin=cni --static-ip=false --extra-config=kubeadm.pod-network-cidr=10.210.0.0/16 --service-cluster-ip-range=10.211.0.0/16 --network=sharedlayer2
Error: unknown flag: --static-ip
See 'minikube start --help' for usage.
14:37:38 medya/workspace/minikube
static_ip2 ✓
$ mk -p cluster-b start --network-plugin=cni --static-ip=false --extra-config=kubeadm.pod-network-cidr=10.210.0.0/16 --service-cluster-ip-range=10.211.0.0/16 --network=sharedlayer2
😄  [cluster-b] minikube v1.24.0 on Darwin 12.0.1 (arm64)
✨  Automatically selected the docker driver
❗  With --network-plugin=cni, you will need to provide your own CNI. See --cni flag as a user-friendly alternative
👍  Starting control plane node cluster-b in cluster cluster-b
🚜  Pulling base image ...
🔥  Creating docker container (CPUs=2, Memory=1988MB) ...
🐳  Preparing Kubernetes v1.22.4 on Docker 20.10.8 ...
    ▪ kubeadm.pod-network-cidr=10.210.0.0/16
❌  Unable to load cached images: loading cached images: stat /Users/medya/.minikube/cache/images/k8s.gcr.io/pause_3.5: no such file or directory
    ▪ Generating certificates and keys ...
    ▪ Booting up control plane ...
    ▪ Configuring RBAC rules ...
🔎  Verifying Kubernetes components...
    ▪ Using image gcr.io/k8s-minikube/storage-provisioner:v5
🌟  Enabled addons: storage-provisioner, default-storageclass
🏄  Done! kubectl is now configured to use "cluster-b" cluster and "default" namespace by default
14:40:36 medya/workspace/minikube
static_ip2 ✓
$ kc get pods A
Error from server (NotFound): pods "A" not found
14:41:02 medya/workspace/minikube
static_ip2 ✓
$ kc get pods -A
NAMESPACE     NAME                                READY   STATUS              RESTARTS   AGE
kube-system   coredns-78fcd69978-dwp56            0/1     ContainerCreating   0          19s
kube-system   etcd-cluster-b                      1/1     Running             0          31s
kube-system   kube-apiserver-cluster-b            1/1     Running             0          31s
kube-system   kube-controller-manager-cluster-b   1/1     Running             0          31s
kube-system   kube-proxy-7l2ld                    1/1     Running             0          19s
kube-system   kube-scheduler-cluster-b            1/1     Running             0          31s
kube-system   storage-provisioner                 1/1     Running             0          29s
14:41:04 medya/workspace/minikube
static_ip2 ✓
$ mk profile list
|-----------|-----------|---------|------------|------|---------|---------|-------|
|  Profile  | VM Driver | Runtime |     IP     | Port | Version | Status  | Nodes |
|-----------|-----------|---------|------------|------|---------|---------|-------|
| cluster-a | docker    | docker  | 172.17.0.3 | 8443 | v1.22.4 | Running |     1 |
| cluster-b | docker    | docker  | 172.17.0.4 | 8443 | v1.22.4 | Running |     1 |
|-----------|-----------|---------|------------|------|---------|---------|-------|
14:41:11 medya/workspace/minikube
static_ip2 ✓
$ docker network ls
NETWORK ID     NAME           DRIVER    SCOPE
cfd291543106   bridge         bridge    local
a4cf62200f82   host           host      local
28c81f724c0f   none           null      local
1683a6526772   sharedlayer2   bridge    local

cdtomkins · 2021-12-08T14:15:09Z

@cdtomkins I am curious are u applying your own CNI ?

Yes, I work for the Project Calico team, for my use-case I need to apply the CNI myself - so I don't specify the CNI at minikube start.

and also is there a reason you want two different clusters use same cidr for pods? that could collide?

Actually if you look again they are using different pod and service ranges.

in your output I see multi nodes but ur minikube start command does not have flags for creating multi nodes...

Yes, I added the extra nodes afterwards using minikube node add

have u tried on a fresh start ( delete --all) and then try two single nodes share the same network ?

Yes, I did it again for you below, you can see that everything works fine but the nodes have been created on the docker bridge, not on the calico_cluster_peer_demo bridge.

I hope this helps.

chris @ chris-work ~ 
└─505─▶ minikube delete --all && rm -rf ~/.minikube && rm -rf ~/.kube
🔥  Successfully deleted all profiles

chris @ chris-work ~ 
└─506─▶ minikube -p cluster-a start --network-plugin=cni --static-ip=false --extra-config=kubeadm.pod-network-cidr=10.200.0.0/16 --service-cluster-ip-range=10.201.0.0/16 --network=calico_cluster_peer_demo
😄  [cluster-a] minikube v1.24.0 on Ubuntu 20.04
    ▪ KUBECONFIG=/home/chris/.kube/config
✨  Automatically selected the docker driver. Other choices: none, ssh
❗  With --network-plugin=cni, you will need to provide your own CNI. See --cni flag as a user-friendly alternative
👍  Starting control plane node cluster-a in cluster cluster-a
🚜  Pulling base image ...
💾  Downloading Kubernetes v1.22.4 preload ...
    > preloaded-images-k8s-v14-v1...: 501.79 MiB / 501.79 MiB  100.00% 7.88 MiB
🔥  Creating docker container (CPUs=2, Memory=7900MB) ...
🐳  Preparing Kubernetes v1.22.4 on Docker 20.10.8 ...
    ▪ kubeadm.pod-network-cidr=10.200.0.0/16
    ▪ Generating certificates and keys ...
    ▪ Booting up control plane ...
    ▪ Configuring RBAC rules ...
🔎  Verifying Kubernetes components...
    ▪ Using image gcr.io/k8s-minikube/storage-provisioner:v5
🌟  Enabled addons: storage-provisioner, default-storageclass
🏄  Done! kubectl is now configured to use "cluster-a" cluster and "default" namespace by default

chris @ chris-work ~ 
└─507─▶ minikube -p cluster-b start --network-plugin=cni --static-ip=false --extra-config=kubeadm.pod-network-cidr=10.210.0.0/16 --service-cluster-ip-range=10.211.0.0/16 --network=calico_cluster_peer_demo
😄  [cluster-b] minikube v1.24.0 on Ubuntu 20.04
    ▪ KUBECONFIG=/home/chris/.kube/config
✨  Automatically selected the docker driver. Other choices: ssh, none
❗  With --network-plugin=cni, you will need to provide your own CNI. See --cni flag as a user-friendly alternative
👍  Starting control plane node cluster-b in cluster cluster-b
🚜  Pulling base image ...
🔥  Creating docker container (CPUs=2, Memory=7900MB) ...
🐳  Preparing Kubernetes v1.22.4 on Docker 20.10.8 ...
    ▪ kubeadm.pod-network-cidr=10.210.0.0/16
    ▪ Generating certificates and keys ...
    ▪ Booting up control plane ...
    ▪ Configuring RBAC rules ...
🔎  Verifying Kubernetes components...
    ▪ Using image gcr.io/k8s-minikube/storage-provisioner:v5
🌟  Enabled addons: storage-provisioner, default-storageclass
🏄  Done! kubectl is now configured to use "cluster-b" cluster and "default" namespace by default

chris @ chris-work ~ 
└─508─▶ kubectl get nodes -o wide
NAME        STATUS   ROLES                  AGE   VERSION   INTERNAL-IP   EXTERNAL-IP   OS-IMAGE             KERNEL-VERSION      CONTAINER-RUNTIME
cluster-b   Ready    control-plane,master   69s   v1.22.4   172.17.0.4    <none>        Ubuntu 20.04.2 LTS   5.11.0-41-generic   docker://20.10.8

chris @ chris-work ~ 
└─511─▶ kubectl --cluster=cluster-a get nodes -o wide
NAME        STATUS   ROLES                  AGE     VERSION   INTERNAL-IP   EXTERNAL-IP   OS-IMAGE             KERNEL-VERSION      CONTAINER-RUNTIME
cluster-a   Ready    control-plane,master   3m10s   v1.22.4   172.17.0.3    <none>        Ubuntu 20.04.2 LTS   5.11.0-41-generic   docker://20.10.8

chris @ chris-work ~ 
└─512─▶ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.11.10.1      0.0.0.0         UG    600    0        0 wlp0s20f3
10.11.10.0      0.0.0.0         255.255.255.0   U     600    0        0 wlp0s20f3
10.230.34.0     0.0.0.0         255.255.255.0   U     0      0        0 mpqemubr0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 mpqemubr0
172.17.0.0      0.0.0.0         255.255.0.0     U     0      0        0 docker0
192.168.49.0    0.0.0.0         255.255.255.0   U     0      0        0 br-1f2b8596d61b

chris @ chris-work ~ 
└─514─▶ docker network ls
NETWORK ID     NAME                       DRIVER    SCOPE
c58086b95b57   bridge                     bridge    local
1f2b8596d61b   calico_cluster_peer_demo   bridge    local
8bc049c4e960   host                       host      local
477a1639b48e   none                       null      local

k8s-ci-robot · 2021-12-11T05:44:02Z

@medyagh: PR needs rebase.

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cdtomkins · 2022-01-13T14:27:55Z

Any further thoughts on merging this one? I will mention it in my FOSDEM talk early next month.

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k8s-ci-robot · 2022-10-15T20:31:38Z

@k8s-triage-robot: Closed this PR.

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medyagh · 2023-01-11T00:12:40Z

anyone followed this PR, there is a another PR that replaced this

#15553

@cdtomkins that will be included in the next minikube release and available on the minikube head

new flag --static-ip to allow random IP

00b23ca

k8s-ci-robot added the size/S Denotes a PR that changes 10-29 lines, ignoring generated files. label Nov 29, 2021

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medyagh changed the title ~~new flag --static-ip to allow random IP~~ wip: new flag --static-ip to allow random IP Nov 30, 2021

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medyagh mentioned this pull request Apr 13, 2022

remove static ip in docker and podman #13766

Closed

zhan9san mentioned this pull request Apr 14, 2022

Can't start minikube inside docker network #13729

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panktrip mentioned this pull request Apr 4, 2024

--static-ip To Auto Set a static IP ? #18576

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wip: new flag --static-ip to allow random IP #13050

wip: new flag --static-ip to allow random IP #13050

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wip: new flag --static-ip to allow random IP #13050

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