addContainer.go

func (p *patches) addContainers(pod *corev1.Pod, containers []corev1.Container) {
	first := len(pod.Spec.Containers) == 0
	path := "/spec/containers"
	var value interface{}
	for _, c := range containers {
		value = c
		tempPath := path
		if first {
			first = false
			value = []corev1.Container{c}
		} else {
			tempPath = path + "/-"
		}

		*p = append(*p, patchOperation{
			Op:    "add",
			Path:  tempPath,
			Value: value,
		})
	}
}