From e71944c71f1ac929b05cd8429af78f545e25da09 Mon Sep 17 00:00:00 2001
From: Michael Schurter <schmichael@hashicorp.com>
Date: Tue, 3 Apr 2018 11:18:47 -0700
Subject: [PATCH 1/2] docs: mention env var changes in upgrade docs
Mention the changes from #3760 in the upgrade docs as applications
expecting underscores will break.
---
.../docs/upgrade/upgrade-specific.html.md | 26 ++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/website/source/docs/upgrade/upgrade-specific.html.md b/website/source/docs/upgrade/upgrade-specific.html.md
index d70efa4603c..971c9684878 100644
--- a/website/source/docs/upgrade/upgrade-specific.html.md
+++ b/website/source/docs/upgrade/upgrade-specific.html.md
@@ -17,7 +17,7 @@ standard upgrade flow.
## Nomad 0.8.0
-#### Raft Protocol Version Compatibility
+### Raft Protocol Version Compatibility
When upgrading to Nomad 0.8.0 from a version lower than 0.7.0, users will need to
set the [`-raft-protocol`](/docs/agent/options.html#_raft_protocol) option to 1 in
@@ -51,6 +51,30 @@ Raft Protocol versions supported by each Consul version:
In order to enable all [Autopilot](/guides/cluster/autopilot.html) features, all servers
in a Nomad cluster must be running with Raft protocol version 3 or later.
+### Periods in Environment Variable Names No Longer Escaped
+
+*Applications which expect periods in environment variable names to be replaced
+with underscores must be updated.*
+
+In Nomad 0.7 periods (`.`) in environment variables names were replaced with an
+underscore in both the [`env`](/docs/job-specification/env.html) and
+[`template`](/docs/job-specification/template.html) stanzas.
+
+In Nomad 0.8 periods are *not* replaced and will be included in environment
+variables verbatim.
+
+For example the following stanza:
+
+```text
+env {
+ registry.consul.addr = "${NOMAD_IP_http}:8500"
+}
+```
+
+In Nomad 0.7 would be exposed to the task as
+`registry_consul_addr=127.0.0.1:8500`. In Nomad 0.8 it will now appear exactly
+as specified: `registry.consul.addr=127.0.0.1:8500`.
+
## Nomad 0.6.0
### Default `advertise` address changes
From a40bcd2f29520c83da6e6b7ae08d29a818c2860c Mon Sep 17 00:00:00 2001
From: Michael Schurter <schmichael@hashicorp.com>
Date: Mon, 9 Apr 2018 10:30:11 -0700
Subject: [PATCH 2/2] docs: mention . env var change in changelog
---
CHANGELOG.md | 3 +++
1 file changed, 3 insertions(+)
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 653e80ea870..908d39450c2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,9 @@ __BACKWARDS INCOMPATIBILITIES:__
attempts/time interval values have been changed to enable faster server side rescheduling. See
[restart stanza](https://www.nomadproject.io/docs/job-specification/restart.html) for more information.
* jobspec: Removed compatibility code that migrated pre Nomad 0.6.0 Update stanza syntax. All job spec files should be using update stanza fields introduced in 0.7.0 [[GH-3979](https://github.com/hashicorp/nomad/pull/3979/files)]
+ * client: Periods (`.`) are no longer replaced with underscores (`_`) in
+ environment variables as many applications rely on periods in environment
+ variable names. [[GH-3760](https://github.com/hashicorp/nomad/issues/3760)]
IMPROVEMENTS:
* core: Servers can now service client HTTP endpoints [[GH-3892](https://github.com/hashicorp/nomad/issues/3892)]