1. only implement post-renderer flags this patch
2. As mumoshu advise, add helmfile flags `--post-render` and add the
postRenderer config in helmDefaults and release. the priority is
helmfile flags > release > helmDefaults.
3. fix the test case in state_test.go and some other tests.
Signed-off-by: guofutan <guofutan@tencent.com>
Signed-off-by: yxxhero <aiopsclub@163.com>
The root cause of this bug was due to that `--kube-context` and `kubeContext` had been treated specifically in code. So on the way I have made it consistent with other per-release settings - by adding `kubeContext` for each release and treating `helmDefaults.kubeContext` as just the default value for per-release setting.
Fixes#674