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From 386f0a82bfdfd62e506bf4251c17263260d3250a Mon Sep 17 00:00:00 2001
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From: Eduardo Otubo <otubo@redhat.com>
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Date: Fri, 7 May 2021 13:36:14 +0200
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Subject: Remove race condition between cloud-init and NetworkManager
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Message-id: <20200302104635.11648-1-otubo@redhat.com>
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Patchwork-id: 94098
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O-Subject: [RHEL-7.9/RHEL-8.2.0 cloud-init PATCH] Remove race condition between cloud-init and NetworkManager
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Bugzilla: 1807797
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RH-Acked-by: Cathy Avery <cavery@redhat.com>
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RH-Acked-by: Mohammed Gamal <mgamal@redhat.com>
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BZ: 1748015
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BRANCH: rhel7/master-18.5
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BREW: 26924611
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BZ: 1807797
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BRANCH: rhel820/master-18.5
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BREW: 26924957
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cloud-init service is set to start before NetworkManager service starts,
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but this does not avoid a race condition between them. NetworkManager
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starts before cloud-init can write `dns=none' to the file:
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/etc/NetworkManager/conf.d/99-cloud-init.conf. This way NetworkManager
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doesn't read the configuration and erases all resolv.conf values upon
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shutdown. On the next reboot neither cloud-init or NetworkManager will
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write anything to resolv.conf, leaving it blank.
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This patch introduces a NM reload (try-restart) at the end of cloud-init
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start up so it won't erase resolv.conf upon first shutdown.
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x-downstream-only: yes
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resolves: rhbz#1748015, rhbz#1807797 and rhbz#1804780
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Signed-off-by: Eduardo Otubo <otubo@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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This commit is a squash and also includes the folloowing commits:
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commit 316a17b7c02a87fa9b2981535be0b20d165adc46
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Author: Eduardo Otubo <otubo@redhat.com>
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Date: Mon Jun 1 11:58:06 2020 +0200
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Make cloud-init.service execute after network is up
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RH-Author: Eduardo Otubo <otubo@redhat.com>
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Message-id: <20200526090804.2047-1-otubo@redhat.com>
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Patchwork-id: 96809
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O-Subject: [RHEL-8.2.1 cloud-init PATCH] Make cloud-init.service execute after network is up
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Bugzilla: 1803928
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RH-Acked-by: Vitaly Kuznetsov <vkuznets@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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cloud-init.service needs to wait until network is fully up before
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continuing executing and configuring its service.
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Signed-off-by: Eduardo Otubo <otubo@redhat.com>
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x-downstream-only: yes
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Resolves: rhbz#1831646
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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commit 0422ba0e773d1a8257a3f2bf3db05f3bc7917eb7
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Author: Eduardo Otubo <otubo@redhat.com>
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Date: Thu May 28 08:44:08 2020 +0200
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Remove race condition between cloud-init and NetworkManager
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RH-Author: Eduardo Otubo <otubo@redhat.com>
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Message-id: <20200327121911.17699-1-otubo@redhat.com>
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Patchwork-id: 94453
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O-Subject: [RHEL-7.9/RHEL-8.2.0 cloud-init PATCHv2] Remove race condition between cloud-init and NetworkManager
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Bugzilla: 1840648
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RH-Acked-by: Vitaly Kuznetsov <vkuznets@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: Cathy Avery <cavery@redhat.com>
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cloud-init service is set to start before NetworkManager service starts,
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but this does not avoid a race condition between them. NetworkManager
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starts before cloud-init can write `dns=none' to the file:
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/etc/NetworkManager/conf.d/99-cloud-init.conf. This way NetworkManager
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doesn't read the configuration and erases all resolv.conf values upon
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shutdown. On the next reboot neither cloud-init or NetworkManager will
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write anything to resolv.conf, leaving it blank.
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ea00c4 |
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This patch introduces a NM reload (try-reload-or-restart) at the end of cloud-init
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start up so it won't erase resolv.conf upon first shutdown.
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x-downstream-only: yes
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Signed-off-by: Eduardo Otubo otubo@redhat.com
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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commit e0b48a936433faea7f56dbc29dda35acf7d375f7
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Author: Eduardo Otubo <otubo@redhat.com>
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Date: Thu May 28 08:44:06 2020 +0200
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Enable ssh_deletekeys by default
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RH-Author: Eduardo Otubo <otubo@redhat.com>
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Message-id: <20200317091705.15715-1-otubo@redhat.com>
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Patchwork-id: 94365
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O-Subject: [RHEL-7.9/RHEL-8.2.0 cloud-init PATCH] Enable ssh_deletekeys by default
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Bugzilla: 1814152
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RH-Acked-by: Mohammed Gamal <mgamal@redhat.com>
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RH-Acked-by: Vitaly Kuznetsov <vkuznets@redhat.com>
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The configuration option ssh_deletekeys will trigger the generation
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of new ssh keys for every new instance deployed.
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x-downstream-only: yes
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resolves: rhbz#1814152
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Signed-off-by: Eduardo Otubo <otubo@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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rhel/cloud.cfg | 2 +-
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rhel/systemd/cloud-init.service | 1 +
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2 files changed, 2 insertions(+), 1 deletion(-)
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diff --git a/rhel/cloud.cfg b/rhel/cloud.cfg
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index 82e8bf62..9ecba215 100644
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--- a/rhel/cloud.cfg
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+++ b/rhel/cloud.cfg
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@@ -6,7 +6,7 @@ ssh_pwauth: 0
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mount_default_fields: [~, ~, 'auto', 'defaults,nofail,x-systemd.requires=cloud-init.service', '0', '2']
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resize_rootfs_tmp: /dev
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-ssh_deletekeys: 0
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+ssh_deletekeys: 1
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ssh_genkeytypes: ~
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syslog_fix_perms: ~
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disable_vmware_customization: false
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diff --git a/rhel/systemd/cloud-init.service b/rhel/systemd/cloud-init.service
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index d0023a05..0b3d796d 100644
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--- a/rhel/systemd/cloud-init.service
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+++ b/rhel/systemd/cloud-init.service
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@@ -5,6 +5,7 @@ Wants=sshd-keygen.service
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Wants=sshd.service
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After=cloud-init-local.service
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After=NetworkManager.service network.service
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+After=NetworkManager-wait-online.service
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Before=network-online.target
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Before=sshd-keygen.service
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Before=sshd.service
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--
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2.31.1
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