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Merge pull request #49033 from wwwtyro/rye/handle-prev-port-none

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Automatic merge from submit-queue (batch tested with PRs 48231, 47377, 48797, 49020, 49033)

prevent unsetting of nonexistent previous port in kubeapi-load-balancer charm

**What this PR does / why we need it**: prevent unsetting of nonexistent previous port in kubeapi-load-balancer charm

**Release note**:
```release-note
prevent unsetting of nonexistent previous port in kubeapi-load-balancer charm
```
This commit is contained in:
Kubernetes Submit Queue 2017-07-17 19:37:48 -07:00 committed by GitHub
commit 50ec4384ff
1 changed files with 2 additions and 0 deletions
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2
cluster/juju/layers/kubeapi-load-balancer/reactive/load_balancer.py
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@ -54,6 +54,8 @@ def request_server_certificates(tls):
def close_old_port():
config = hookenv.config()
old_port = config.previous('port')
if not old_port:
return
try:
hookenv.close_port(old_port)
except CalledProcessError: