not able to connect to internet via HTTPS minikube pods

Question

cluster info:

Minikube installation steps on centos VM:

curl -LO https://storage.googleapis.com/minikube/releases/v1.21.0/minikube-linux-amd64
sudo install minikube-linux-amd64 /usr/local/bin/minikube
minikube start --addons=ingress --vm=true --memory=8192 --driver=none

PODs of this minikube cluster are not able to connect to internet.

However My host VM has internet connection with no firewall or iptables setup.

Can anybody help me debug this connection refused error

UPDATE:

I have noticed just now , I am able to connect non-https URLs, but not https URLs

Answer 1

How you have started the Minikube on the VM ? Which command did you used ?

If you are using the minikube --driver=docker it might won't work.

for starting the minikube on VM you have to change the driver

minikube --driver=none

in docker driver, it will create the container and install the kubernetes inside it and spawn the POD into further.

Check more at : https://minikube.sigs.k8s.io/docs/drivers/none/

if you on docker you can try :

pkill docker
iptables -t nat -F
ifconfig docker0 down
brctl delbr docker0
docker -d

"It will force docker to recreate the bridge and reinit all the network rules"

reference : https://github.com/moby/moby/issues/866#issuecomment-19218300

Try with

docker run --net=host -it ubuntu

Or else add dns in the config file in /etc/default/docker

DOCKER_OPTS="--dns 208.67.222.222 --dns 208.67.220.220" 

Answer 2

Please check your container port and target port. This is my pod setup:

spec:

 containers:

       name: hello

       image: "nginx"

  ports:

      containerPort: 5000

This is my service setup:

 ports:

    protocol: TCP

        port: 60000

       targetPort: 5000

If your target port and container port don't match, you will get a curl: (7) connection refused error(Source).

Checkout similar Stackoverflowlink for more information.