Release v2.2.0 (#403)

Release v2.2.0

Co-authored-by: Vladimir Lavor <vlavor@cisco.com>
Co-authored-by: Milan Lenčo <milenco@cisco.com>

.gitignore

@@ -10,6 +10,7 @@ examples/cryptodata-plugin/cryptodata-plugin
 examples/cryptodata-proto-plugin/cryptodata-proto-plugin
 examples/datasync-plugin/datasync-plugin
 examples/etcd-lib/editor/editor
+examples/etcd-lib/election/election
 examples/etcd-lib/view/view
 examples/etcd-lib/watcher/watcher
 examples/flags-lib/flags-lib
@@ -36,6 +37,7 @@ examples/redis-lib/simple/simple
 examples/redis-plugin/redis-plugin
 examples/simple-agent/simple-agent
 examples/statuscheck-plugin/statuscheck-plugin
+examples/supervisor-plugin/supervisor-plugin
 examples/prometheus-plugin/prometheus-plugin
 db/keyval/etcd/examples/phonebook/editor/editor
 db/keyval/etcd/examples/phonebook/view/view

CHANGELOG.md

@@ -1,3 +1,26 @@
+# Release v2.2 (2019-08-23)
+
+## Major Topics
+
+**Supervisor plugin**
+A new supervisor plugin was introduced, effectively capable to replace supervisord-based environment. The plugin defines a configuration file with a list of programs started by the so-called supervisor agent, or agent-init. More information is available is Ligato [documentation for supervisor plugin][docs-supervisor].
+
+## New Features
+* [Supervisor-plugin][supervisor-plugin]
+  - A new management plugin can start other processes, including other agents or VPP. Every process must specify a unique `name`, `executable-path` and `executable-args` (arguments) if they are used. 
+  - Base logging is done to the standard output/err. Instead, all the output can be written to the file, defining file path in `logfile-path` within the supervisor config file. 
+  - Every process can now have the CPU affinity set. Use `cpu-affinity-mask` field to set hexadecimal CPU mask (the same format as Linux command `taskset`). Another field, `cpu-affinity-setup-delay` can postpone CPU affinity configuration by a given time.
+  - Hooks are executed for specific process events, like a change of the process state. Every hook is executed in supervisor environment with several environment variables set. See the [documentation][docs-supervisor] for more information.
+
+## Improvements
+* [ETCD][etcd-plugin]
+  - Now supports atomic operations with interface `BytesBrokerWithAtomic`. Also the new API method `CompareAndSwap` was added.
+  - Added option to use 'expand' environment variable which replaces `$var` in received JSON data.
+  - Option to set own serialized as a plugin dependency.
+  - New method `RawAccess()` accesses data in the database as bytes (i.e. not formatted as protobuf).
+* [Process-manager][process-manager]
+  - Now uses a buffered writer to put logs to either stdout/stderr or to file. The file is written if the field `logfile-path` is set.
+
 # Release v2.1 (2019-05-09)
 
 ## Improvements
@@ -454,6 +477,7 @@ different flavors (removed in v1.5) (reusable collection of plugins):
 [datasync-plugin]: datasync
 [datasync-restsync]: datasync/restsync
 [docker]: docker
+[docs-supervisor]: https://docs.ligato.io/en/latest/plugins/infra-plugins/#supervisor
 [etcd-plugin]: db/keyval/etcd
 [examples]: examples
 [examples-bolt]: examples/bolt-plugin
@@ -475,9 +499,11 @@ different flavors (removed in v1.5) (reusable collection of plugins):
 [logmanager-plugin]: logging/logmanager
 [logrus]: logging/logrus
 [probe-plugin]: health/probe
+[process-manager]: exec/processmanager
 [redis-plugin]: db/keyval/redis
 [rest-plugin]: rpc/rest
 [resync-plugin]: datasync/resync
 [service-label-plugin]: servicelabel
 [statuscheck-plugin]: health/statuscheck
+[supervisor-plugin]: exec/supervisor
 [tracer-plugin]: logging/measure

Gopkg.toml

@@ -12,10 +12,6 @@ required = [
   name = "google.golang.org/grpc"
   version = "1.14.0"
 
-[[override]]
-  name = "github.com/grpc-ecosystem/grpc-gateway"
-  version = "1.4.1"
-
 [[constraint]]
   name = "github.com/Shopify/sarama"
   version = "1.17.0"
@@ -34,11 +30,7 @@ required = [
 
 [[constraint]]
   name = "github.com/coreos/etcd"
-  version = "=3.3.10"
-
-[[override]]
-  name = "github.com/coreos/bbolt"
-  version = "1.3.1-coreos.6"
+  version = "~3.3.10"
 
 [[constraint]]
   name = "github.com/ghodss/yaml"
@@ -108,6 +100,14 @@ required = [
   branch = "master"
   name = "github.com/boltdb/bolt"
 
+[[override]]
+  name = "github.com/grpc-ecosystem/grpc-gateway"
+  version = "1.4.1"
+
+[[override]]
+  name = "github.com/coreos/bbolt"
+  version = "1.3.1-coreos.6"
+
 [prune]
   go-tests = true
   unused-packages = true