releasenotes: add notes for Mitaka cycle

Change-Id: I8b5f6979f692255921ffc26cd61d0d1f17b58eab

releasenotes/notes/api_paste-b94e191896840944.yaml

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+---
+features:
+  - Add api_paste type/provider.

releasenotes/notes/api_wsgi-e8eb12b8e66ffe4e.yaml

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+---
+features:
+  - Allow to deploy Ironic API in WSGI with Apache.

releasenotes/notes/deprecate_cluster_id-8d9838a9ef8932bf.yaml

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+---
+deprecations:
+  - cluster_id parameter is deprecated.

releasenotes/notes/inspector_mitaka-5984d9af2ba56cb3.yaml

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+---
+features:
+  - Use dnsmasq dhcp-sequential-ip flag in dnsmasq.conf
+    Introspection naturally happens in large bulks, after which it's inactive.
+    Small pool for DHCP addresses means that we'll have conflicts due to how
+    dnsmasq distributes them by default - using hashing. This change tells dnsmasq
+    to allocate IP addresses sequentially instead to avoid these conflicts.
+    The drawback of this option is that long-running clients may switch IP
+    addresses if their lease expires. This is not a concern for short introspection
+    process.
+  - Allow sending random kernel arguments to the IPA.
+    IPA accepts plenty of kernel arguments, adding all them explicitly
+    may be not practical. New option ramdisk_kernel_args allows to set
+    a string to append to the kernel command line when booting IPA.
+    One of the use-cases is ipa-inspection-benchmarks option, enabling benchmarking
+    during inspection.
+  - Allow changing list of processing hooks.
+    Processing hooks are ironic-inspector plugins for the data processing
+    pipeline. This change enables appending new hooks to the default list.
+  - Specify SELinux type context for tftp dir.
+    We create a /tftpboot/ dir in the root directory without
+    specifying a SELinux type context, so it gets default_t. The
+    tftp process is not allowed read permission on default_t, and
+    as a result the ironic-inspector-dnsmasq service fails to start.
+    The fix is to specify a type context of tftpdir_t when
+    creating the /tftpboot/ directory.
+    This feature pulls the /tftpboot/ directory out of the if
+    block relating only to tftp configuration. The /tftpboot/
+    directory is also used by iPXE/http for the undionly.kpxe
+    chainloading image.
+  - Enable changing list of inspection collectors.
+    Inspection collectors are IPA plugins that collect additional information
+    for inspection. This feature allow changing their list, with default remaining
+    the same (for now).
+  - Allow to create Keystone resources to deploy Ironic Inspector, like service, endpoints, etc.
+  - Create a separate class for configuring logging.

releasenotes/notes/pymysql-e57bf1f0289dd426.yaml

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+---
+features:
+  - Support of PyMySQL driver for MySQL backend.

releasenotes/notes/remove_old_auth-d9fc4af8e2ced291.yaml

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+---
+deprecations:
+  - Use identity_uri and auth_uri by default and remove old deprecated auth parameters.

releasenotes/notes/remove_qpid-0b446db43fdea617.yaml

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+---
+deprecations:
+  - Remove QPID messaging support.
+    Qpid messaging driver is removed from oslo.messaging so we won't support
+    anymore.