[Bug 1373261] Re: pserv.yaml rewrite breaks when MAAS URL uses IPv6 address

[Jeroen T. Vermeulen]

** Description changed:

- Reconfiguring between an IPv4-based and an IPv6-based MAAS_URL broke the
- ‘generator’ setting in my pserv.yaml: it ended up being the full IPv4
- netloc, with most of the IPv6 netloc tacked onto it.
+ Reconfiguring when the existing MAAS_URL used an IPv6 host address broke
+ the ‘generator’ setting in my pserv.yaml: it ended up being the full
+ newly configured netloc, with most of the previous IPv6 netloc tacked
+ onto it.
  
  I think that's because the regex in maas-cluster-controller.postinst
  mistakes the first colon in an IPv6 address for the beginning of a port
  specifier:
  
-         sed -i "s|MAAS_URL=.*|MAAS_URL=\"$RET\"|" /etc/maas/maas_cluster.conf
-         # Extract the hostname part.
-         HOSTPART=$(echo $RET|awk '{ split($0,array,"/")} END{print array[3] }')
-         # And substitute it in-place in pserv.yaml on an indented, non-commented
-         # line.
-         sed -ri "s|^([[:space:]]+)(#+[[:space:]]*)?(generator:[[:space:]]+https?://)[^:/]+|\1\3$HOSTPART|" /etc/maas/pserv.yaml
+         sed -i "s|MAAS_URL=.*|MAAS_URL=\"$RET\"|" /etc/maas/maas_cluster.conf
+         # Extract the hostname part.
+         HOSTPART=$(echo $RET|awk '{ split($0,array,"/")} END{print array[3] }')
+         # And substitute it in-place in pserv.yaml on an indented, non-commented
+         # line.
+         sed -ri "s|^([[:space:]]+)(#+[[:space:]]*)?(generator:[[:space:]]+https?://)[^:/]+|\1\3$HOSTPART|" /etc/maas/pserv.yaml
  
  These things are still best done in Python I suppose.

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https://bugs.launchpad.net/bugs/1373261

Title:
  pserv.yaml rewrite breaks when MAAS URL uses IPv6 address

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