CHANGELOG: Document changes since v0.3.0

Through 1e2b796 (Merge pull request openshift#594 from crawford/nlb,
2018-11-02).

CHANGELOG.md

@@ -4,6 +4,77 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## 0.4.0 - 2018-11-02
+
+### Added
+
+- [The ingress operator][ingress-operator] is no longer masked. The
+ old Tectonic ingress operator has been removed.
+- The [checkpointer operator][checkpointer-operator] is no longer
+ masked. It runs on the production cluster, but not on the bootstrap
+ node.
+- Cloud credentials are now pushed into a secret where they can be
+ consumed by cluster-API operators and other tools.
+
+### Changed
+
+- For consistency with 0.3.0's `destroy`, the the old
+ `install-config`, `manifests`, `ignition-configs`, and `cluster`
+ commands have been pushed down under a new `create` subcommand. For
+ example, you should now use `openshift-install create cluster`
+ instead of `openshift-install cluster`. The old commands are
+ deprecated.
+- etcd discovery now happens via `SRV` records. On libvirt, this
+ requires a new Terraform provider, so users with older providers
+ should [install a newer
+ version](docs/dev/libvirt-howto.md#install-the-terraform-provider).
+ This also allows all masters to use a single Ignition file.
+- On AWS the API and service load balancers have been changed from
+ [classic load balancers][aws-elb] to [network load
+ balancers][aws-nlb]. This should avoid [some latency issues we were
+ seeing with classic load balancers][aws-elb-latency], and network
+ load balancers are cheaper.
+- The bootstrap kubelet is no longer part of the production cluster.
+ This reduces complexity and keeps production pods off of the
+ temporary bootstrap node.
+- [The cluster-version operator][cluster-version-operator] now runs in
+ a static pod on the bootstrap node until the production control
+ plane comes up. This breaks a cyclic dependency between the
+ production API server and operators.
+- The bootstrap control plane now waits for some core pods to come up
+ before exiting.
+- [The machine-API operator][machine-api-operator] now reads the
+ install-config from the `cluster-config-v1` config-map, instead of
+ from an operator-specific configuration.
+- AWS AMIs and libvirt images are now pulled from the new [RHCOS
+ pipeline][rhcos-pipeline].
+- Updated the security contact information for CoreOS -> Red Hat.
+- Lots of doc and internal cleanup and minor fixes.
+
+### Fixed
+
+- The `bootstrap-complete` event (new in 0.3.0) is now pushed at the
+ appropriate time (it was too early in 0.3.0).
+- `delete cluster` is now more robust on AWS, removing resources with
+ either the `tectonicClusterID` or `kubernetes.io/cluster/<name>:
+ owned` tags. It also removes pending instances as well (it used to
+ only remove running instances).
+- Bootstrap Ignition edits (via `create ignition-configs`) no longer
+ suffer from a `worker.ign` dependency cycle, which had been
+ clobbering manual `bootstrap.ign` changes.
+- The state-purging implementation respects `--dir`, avoiding `remove
+ ...: no such file or directory` errors during [staged
+ installs](docs/user/overview.md#multiple-invocations).
+- Cross-filesystem Terraform state recovery during `destroy bootstrap`
+ no longer raises `invalid cross-device link`.
+- Bootstrap binaries are now located under `/usr/local/bin`, avoiding
+ SELinux violations on RHEL 8.
+
+### Removed
+
+- The kube-addon operator no longer installs an image registry, now
+ that [the registry operator][registry-operator] fills that role.
+
 ## 0.3.0 - 2018-10-22
 
 ### Added
@@ -136,12 +207,19 @@ installer and follow along as it guides you through the process.
 The `tectonic` command and tarball distribution are gone. Please use
 the new `openshift-install` command instead.
 
+[aws-elb]: https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/introduction.html
+[aws-elb-latency]: https://github.com/openshift/installer/pull/594#issue-227786691
+[aws-nlb]: https://docs.aws.amazon.com/elasticloadbalancing/latest/network/introduction.html
+[checkpointer-operator]: https://github.com/openshift/pod-checkpointer-operator
 [cluster-api-provider-aws]: https://github.com/openshift/cluster-api-provider-aws
 [cluster-version-operator]: https://github.com/openshift/cluster-version-operator
 [dot]: https://www.graphviz.org/doc/info/lang.html
+[ingress-operator]: https://github.com/openshift/cluster-ingress-operator
 [kube-apiserver-operator]: https://github.com/openshift/cluster-kube-apiserver-operator
 [kube-controller-manager-operator]: https://github.com/openshift/cluster-kube-controller-manager-operator
 [machine-api-operator]: https://github.com/openshift/machine-api-operator
 [machine-config-operator]: https://github.com/openshift/machine-config-operator
 [Prometheus]: https://github.com/prometheus/prometheus
+[registry-operator]: https://github.com/openshift/cluster-image-registry-operator
+[rhcos-pipeline]: https://releases-rhcos.svc.ci.openshift.org/storage/releases/maipo/builds.json
 [service-serving-cert-signer]: https://github.com/openshift/service-serving-cert-signer