Few issues with Container create validation

[skobyda]

Copied from @garrett 's comment at #1354 (review)

1. Trash can icon is misaligned when there are elements pushing it vertically.

But this can be handled in a follow-up.

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2. I get an error of file not found in the autocomplete widget, but not as a message. Is this intended?

[jelly]

When the Host path is invalid we don't add it as a Volume so this should be fixed and made into an error.

Currently the validation seems to be:

    switch (key) {
    case "hostPath":
        break;

So nothing happens. This functionality uses Cockpit's FileAutoComplete component which has no way to give back an error state, except when an error has happened it returns an empty string and set's it's own error state.

As you don't know the previous state, it's hard to determine if there was an issue.

without breaking the FileAutoComplete onChange API, by adding another callback argument we could do:

            this.props.onChange('');
            if (this.props.onError) {
              this.props.onError(error)
            };

What gives:

[jelly]

We also lack this validation in the create pod modal.