Add wait option to Pod Create

[pablochacin]

Add option for waiting until the Pod is running to pod Create. if the pod is not running after a given timeout, an error is returned.

Closes #43

[ppcano]

Given the example:

kubernetes.pods.create({
    namespace: namespace,
    name: podName,
    image: image,
    command: command
  })

const options = {
    namespace: namespace,
    name: podName,
    status: "Succeeded",
    timeout: "10s"
}
if (kubernetes.pods.wait(options)) {
    console.log(podName + " pod completed successfully")
} else {
    throw podName + " is not completed"
}

I suggest adding the timeout option to the creation command. It could be something like:

const resultExecution = kubernetes.pods.createAndWait({
    namespace: namespace,
    name: podName,
    image: image,
    command: command,
    timeout: "10s"
})

or any other alternative:

• kubernetes.pods.sendCommand: and timeout is required.
• ....

[pablochacin]

I suggest adding the timeout option to the creation command. It could be something like:

@ppcano this is already done. I just also made possible to wait after the pod is created. This is useful for waiting for the pod to complete.

[javaducky]

Please add some unit tests around this new functionality; basically what the example scripts attempt to prove.

[javaducky]

Just a couple minor issues.

[javaducky]

So this command puts the pod into an error state resulting in script returning Pod has failed. Was this the intended behavior for the example?

[pablochacin]

I changed the example to (hopefully) make the purpose evident.

[javaducky]

LGTM! Thank you for a great addition!