* upstream/master: (295 commits)
Update CHANGELOG.md
provider/aws: Allow DB Parameter group to change in RDS
return error if failed to set tags on Route 53 zone
core: [tests] fix order dependent test
Fix hashcode for ASG test
provider/aws: Fix issue with tainted ASG groups failing to re-create
Don't error when reading s3 bucket with no tags
Avoid panics when DBName is not set
Add floating IP association in aceptance tests
Use env var OS_POOL_NAME as default for pool attribute
providers/heroku: Add heroku-postgres to example
docs: resource addressing
providers/heroku: Document environment variables
providers/heroku: Add region to example
Bugfix on floating IP assignment
Update CHANGELOG.md
update CHANGELOG
website: note on docker
core: formalize resource addressing
core: fill out context tests for targeted ops
...
Though not directly connected, trying to delete a subnet and security group in
parallel can cause a dependency violation from the subnet, claiming there are
dependencies.
This commit fixes that by allowing subnet deletion to tolerate failure with a
retry / refresh function.
Fixes#934
If map_public_ip_on_launch was not specified, AWS picks a default of
"0", which is different than the "" in the state file, triggerinng an
update each time. Mark that parameter as Computed, avoiding the update.
If a subnet exists in the state file and a refresh is performed, the
read function for subnets would return an error. Now it updates the
state to indicate that the subnet no longer exists, so Terraform can
plan to recreate it.
Clint Shryock