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-rwxr-xr-xdeployed-server/scripts/get-occ-config.sh2
-rw-r--r--docker/services/keystone.yaml55
-rw-r--r--docker/services/nova-api.yaml3
-rw-r--r--environments/deployed-server-environment.j2.yaml11
-rw-r--r--environments/deployed-server-environment.yaml4
-rw-r--r--environments/enable-internal-tls.yaml3
-rw-r--r--overcloud-resource-registry-puppet.j2.yaml3
-rw-r--r--puppet/services/apache-internal-tls-certmonger.yaml75
-rw-r--r--puppet/services/apache.yaml44
-rw-r--r--puppet/services/database/mysql-internal-tls-certmonger.yaml47
-rw-r--r--puppet/services/database/mysql.yaml33
-rw-r--r--puppet/services/kernel.yaml2
-rw-r--r--puppet/services/rabbitmq-internal-tls-certmonger.yaml47
-rw-r--r--puppet/services/rabbitmq.yaml37
-rw-r--r--releasenotes/notes/restrict-access-to-kernel-message-buffer-809160674b92a073.yaml11
15 files changed, 122 insertions, 255 deletions
diff --git a/deployed-server/scripts/get-occ-config.sh b/deployed-server/scripts/get-occ-config.sh
index 6c196f97..d0cc4dff 100755
--- a/deployed-server/scripts/get-occ-config.sh
+++ b/deployed-server/scripts/get-occ-config.sh
@@ -63,7 +63,7 @@ for role in $OVERCLOUD_ROLES; do
rg_stack=$(openstack stack resource show overcloud $role -c physical_resource_id -f value)
done
- stacks=$(openstack stack resource list $rg_stack -c physical_resource_id -f value)
+ stacks=$(openstack stack resource list $rg_stack -c resource_name -c physical_resource_id -f json | jq -r "sort_by(.resource_name) | .[] | .physical_resource_id")
i=0
diff --git a/docker/services/keystone.yaml b/docker/services/keystone.yaml
index b7da3cb8..0597b906 100644
--- a/docker/services/keystone.yaml
+++ b/docker/services/keystone.yaml
@@ -46,9 +46,6 @@ resources:
ServiceNetMap: {get_param: ServiceNetMap}
DefaultPasswords: {get_param: DefaultPasswords}
-conditions:
- keystone_fernet_tokens: {equals: [{get_param: KeystoneTokenProvider}, "fernet"]}
-
outputs:
role_data:
description: Role data for the Keystone API role.
@@ -76,53 +73,6 @@ outputs:
kolla_config:
/var/lib/kolla/config_files/keystone.json:
command: /usr/sbin/httpd -DFOREGROUND
- config_files:
- - dest: /etc/keystone/keystone.conf
- owner: keystone
- perm: '0640'
- source: /var/lib/kolla/config_files/src/etc/keystone/keystone.conf
- - dest: /etc/keystone/credential-keys/0
- owner: keystone
- perm: '0600'
- source: /var/lib/kolla/config_files/src/etc/keystone/credential-keys/0
- - dest: /etc/keystone/credential-keys/1
- owner: keystone
- perm: '0600'
- source: /var/lib/kolla/config_files/src/etc/keystone/credential-keys/1
- - dest: /etc/keystone/fernet-keys/0
- owner: keystone
- perm: '0600'
- source: /var/lib/kolla/config_files/src/etc/keystone/fernet-keys/0
- optional: {if: [keystone_fernet_tokens, false, true]}
- - dest: /etc/keystone/fernet-keys/1
- owner: keystone
- perm: '0600'
- source: /var/lib/kolla/config_files/src/etc/keystone/fernet-keys/1
- optional: {if: [keystone_fernet_tokens, false, true]}
- - dest: /etc/httpd/conf.d/10-keystone_wsgi_admin.conf
- owner: root
- perm: '0644'
- source: /var/lib/kolla/config_files/src/etc/httpd/conf.d/10-keystone_wsgi_admin.conf
- - dest: /etc/httpd/conf.d/10-keystone_wsgi_main.conf
- owner: root
- perm: '0644'
- source: /var/lib/kolla/config_files/src/etc/httpd/conf.d/10-keystone_wsgi_main.conf
- - dest: /etc/httpd/conf/httpd.conf
- owner: root
- perm: '0644'
- source: /var/lib/kolla/config_files/src/etc/httpd/conf/httpd.conf
- - dest: /etc/httpd/conf/ports.conf
- owner: root
- perm: '0644'
- source: /var/lib/kolla/config_files/src/etc/httpd/conf/ports.conf
- - dest: /var/www/cgi-bin/keystone/keystone-admin
- owner: keystone
- perm: '0644'
- source: /var/lib/kolla/config_files/src/var/www/cgi-bin/keystone/keystone-admin
- - dest: /var/www/cgi-bin/keystone/keystone-public
- owner: keystone
- perm: '0644'
- source: /var/lib/kolla/config_files/src/var/www/cgi-bin/keystone/keystone-public
docker_config:
step_3:
keystone-init-log:
@@ -140,8 +90,9 @@ outputs:
detach: false
volumes: &keystone_volumes
- /var/lib/kolla/config_files/keystone.json:/var/lib/kolla/config_files/config.json:ro
- - /var/lib/config-data/keystone/:/var/lib/kolla/config_files/src:ro
- - /var/lib/config-data/keystone/etc/httpd/conf.modules.d:/etc/httpd/conf.modules.d:ro
+ - /var/lib/config-data/keystone/var/www/:/var/www/:ro
+ - /var/lib/config-data/keystone/etc/keystone/:/etc/keystone/:ro
+ - /var/lib/config-data/keystone/etc/httpd/:/etc/httpd/:ro
- /etc/hosts:/etc/hosts:ro
- /etc/localtime:/etc/localtime:ro
- logs:/var/log
diff --git a/docker/services/nova-api.yaml b/docker/services/nova-api.yaml
index 9e203b7a..e5c78d6c 100644
--- a/docker/services/nova-api.yaml
+++ b/docker/services/nova-api.yaml
@@ -134,8 +134,9 @@ outputs:
- /etc/localtime:/etc/localtime:ro
environment:
- KOLLA_CONFIG_STRATEGY=COPY_ALWAYS
+ step_5:
nova_api_discover_hosts:
- start_order: 3
+ start_order: 1
image: *nova_api_image
net: host
detach: false
diff --git a/environments/deployed-server-environment.j2.yaml b/environments/deployed-server-environment.j2.yaml
new file mode 100644
index 00000000..327934da
--- /dev/null
+++ b/environments/deployed-server-environment.j2.yaml
@@ -0,0 +1,11 @@
+resource_registry:
+ OS::TripleO::Server: ../deployed-server/deployed-server.yaml
+ OS::TripleO::DeployedServer::ControlPlanePort: OS::Neutron::Port
+ OS::TripleO::DeployedServer::Bootstrap: OS::Heat::None
+
+{% for role in roles %}
+ # Default nic config mappings
+ OS::TripleO::{{role.name}}::Net::SoftwareConfig: ../net-config-static.yaml
+{% endfor %}
+
+ OS::TripleO::ControllerDeployedServer::Net::SoftwareConfig: ../net-config-static-bridge.yaml
diff --git a/environments/deployed-server-environment.yaml b/environments/deployed-server-environment.yaml
deleted file mode 100644
index 7bc1bd9b..00000000
--- a/environments/deployed-server-environment.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-resource_registry:
- OS::TripleO::Server: ../deployed-server/deployed-server.yaml
- OS::TripleO::DeployedServer::ControlPlanePort: OS::Neutron::Port
- OS::TripleO::DeployedServer::Bootstrap: OS::Heat::None
diff --git a/environments/enable-internal-tls.yaml b/environments/enable-internal-tls.yaml
index e245a6af..2fdecb4f 100644
--- a/environments/enable-internal-tls.yaml
+++ b/environments/enable-internal-tls.yaml
@@ -12,9 +12,6 @@ resource_registry:
OS::TripleO::Services::CertmongerUser: ../puppet/services/certmonger-user.yaml
OS::TripleO::Services::HAProxyInternalTLS: ../puppet/services/haproxy-internal-tls-certmonger.yaml
- OS::TripleO::Services::ApacheTLS: ../puppet/services/apache-internal-tls-certmonger.yaml
- OS::TripleO::Services::MySQLTLS: ../puppet/services/database/mysql-internal-tls-certmonger.yaml
- OS::TripleO::Services::RabbitMQTLS: ../puppet/services/rabbitmq-internal-tls-certmonger.yaml
# We use apache as a TLS proxy
OS::TripleO::Services::TLSProxyBase: ../puppet/services/apache.yaml
diff --git a/overcloud-resource-registry-puppet.j2.yaml b/overcloud-resource-registry-puppet.j2.yaml
index d9eaf8df..b294d7cb 100644
--- a/overcloud-resource-registry-puppet.j2.yaml
+++ b/overcloud-resource-registry-puppet.j2.yaml
@@ -120,7 +120,6 @@ resource_registry:
# services
OS::TripleO::Services: puppet/services/services.yaml
OS::TripleO::Services::Apache: puppet/services/apache.yaml
- OS::TripleO::Services::ApacheTLS: OS::Heat::None
OS::TripleO::Services::CACerts: puppet/services/ca-certs.yaml
OS::TripleO::Services::CephMds: OS::Heat::None
OS::TripleO::Services::CephMon: OS::Heat::None
@@ -144,7 +143,6 @@ resource_registry:
OS::TripleO::Services::HeatEngine: puppet/services/heat-engine.yaml
OS::TripleO::Services::Kernel: puppet/services/kernel.yaml
OS::TripleO::Services::MySQL: puppet/services/database/mysql.yaml
- OS::TripleO::Services::MySQLTLS: OS::Heat::None
OS::TripleO::Services::NeutronBgpvpnApi: OS::Heat::None
OS::TripleO::Services::NeutronDhcpAgent: puppet/services/neutron-dhcp.yaml
OS::TripleO::Services::NeutronL3Agent: puppet/services/neutron-l3.yaml
@@ -170,7 +168,6 @@ resource_registry:
OS::TripleO::Services::PacemakerRemote: OS::Heat::None
OS::TripleO::Services::NeutronSriovAgent: OS::Heat::None
OS::TripleO::Services::RabbitMQ: puppet/services/rabbitmq.yaml
- OS::TripleO::Services::RabbitMQTLS: OS::Heat::None
OS::TripleO::Services::HAproxy: puppet/services/haproxy.yaml
OS::TripleO::Services::HAProxyPublicTLS: OS::Heat::None
OS::TripleO::Services::HAProxyInternalTLS: OS::Heat::None
diff --git a/puppet/services/apache-internal-tls-certmonger.yaml b/puppet/services/apache-internal-tls-certmonger.yaml
deleted file mode 100644
index 4c94f440..00000000
--- a/puppet/services/apache-internal-tls-certmonger.yaml
+++ /dev/null
@@ -1,75 +0,0 @@
-heat_template_version: ocata
-
-description: >
- Apache service TLS configurations.
-
-parameters:
- ServiceNetMap:
- default: {}
- description: Mapping of service_name -> network name. Typically set
- via parameter_defaults in the resource registry. This
- mapping overrides those in ServiceNetMapDefaults.
- type: json
- # The following parameters are not needed by the template but are
- # required to pass the pep8 tests
- DefaultPasswords:
- default: {}
- type: json
- EndpointMap:
- default: {}
- description: Mapping of service endpoint -> protocol. Typically set
- via parameter_defaults in the resource registry.
- type: json
-
-resources:
-
- ApacheNetworks:
- type: OS::Heat::Value
- properties:
- value:
- # NOTE(jaosorior) Get unique network names to create
- # certificates for those. We skip the tenant network since
- # we don't need a certificate for that, and the external
- # network will be handled in another template.
- yaql:
- expression: list($.data.map.items().map($1[1])).distinct().where($ != external and $ != tenant)
- data:
- map:
- get_param: ServiceNetMap
-
-outputs:
- role_data:
- description: Role data for the Apache role.
- value:
- service_name: apache_internal_tls_certmonger
- config_settings:
- generate_service_certificates: true
- apache_certificates_specs:
- map_merge:
- repeat:
- template:
- httpd-NETWORK:
- service_certificate: '/etc/pki/tls/certs/httpd-NETWORK.crt'
- service_key: '/etc/pki/tls/private/httpd-NETWORK.key'
- hostname: "%{hiera('fqdn_NETWORK')}"
- principal: "HTTP/%{hiera('fqdn_NETWORK')}"
- for_each:
- NETWORK: {get_attr: [ApacheNetworks, value]}
- metadata_settings:
- repeat:
- template:
- - service: HTTP
- network: $NETWORK
- type: node
- for_each:
- $NETWORK: {get_attr: [ApacheNetworks, value]}
- upgrade_tasks:
- - name: Check if httpd is deployed
- command: systemctl is-enabled httpd
- tags: common
- ignore_errors: True
- register: httpd_enabled
- - name: "PreUpgrade step0,validation: Check service httpd is running"
- shell: /usr/bin/systemctl show 'httpd' --property ActiveState | grep '\bactive\b'
- when: httpd_enabled.rc == 0
- tags: step0,validation
diff --git a/puppet/services/apache.yaml b/puppet/services/apache.yaml
index 2d950151..9bd282f8 100644
--- a/puppet/services/apache.yaml
+++ b/puppet/services/apache.yaml
@@ -31,13 +31,25 @@ parameters:
type: boolean
default: false
+conditions:
+
+ internal_tls_enabled: {equals: [{get_param: EnableInternalTLS}, true]}
resources:
- ApacheTLS:
- type: OS::TripleO::Services::ApacheTLS
+ ApacheNetworks:
+ type: OS::Heat::Value
properties:
- ServiceNetMap: {get_param: ServiceNetMap}
+ value:
+ # NOTE(jaosorior) Get unique network names to create
+ # certificates for those. We skip the tenant network since
+ # we don't need a certificate for that, and the external
+ # is for HAProxy so it isn't used for apache either.
+ yaql:
+ expression: list($.data.map.items().map($1[1])).distinct().where($ != external and $ != tenant)
+ data:
+ map:
+ get_param: ServiceNetMap
outputs:
role_data:
@@ -46,7 +58,6 @@ outputs:
service_name: apache
config_settings:
map_merge:
- - get_attr: [ApacheTLS, role_data, config_settings]
-
# for the given network; replacement examples (eg. for internal_api):
# internal_api -> IP
@@ -64,8 +75,31 @@ outputs:
apache::mod::prefork::serverlimit: { get_param: ApacheServerLimit }
apache::mod::remoteip::proxy_ips:
- "%{hiera('apache_remote_proxy_ips_network')}"
+ -
+ generate_service_certificates: true
+ apache_certificates_specs:
+ map_merge:
+ repeat:
+ template:
+ httpd-NETWORK:
+ service_certificate: '/etc/pki/tls/certs/httpd-NETWORK.crt'
+ service_key: '/etc/pki/tls/private/httpd-NETWORK.key'
+ hostname: "%{hiera('fqdn_NETWORK')}"
+ principal: "HTTP/%{hiera('fqdn_NETWORK')}"
+ for_each:
+ NETWORK: {get_attr: [ApacheNetworks, value]}
metadata_settings:
- get_attr: [ApacheTLS, role_data, metadata_settings]
+ if:
+ - internal_tls_enabled
+ -
+ repeat:
+ template:
+ - service: HTTP
+ network: $NETWORK
+ type: node
+ for_each:
+ $NETWORK: {get_attr: [ApacheNetworks, value]}
+ - null
upgrade_tasks:
- name: Check if httpd is deployed
command: systemctl is-enabled httpd
diff --git a/puppet/services/database/mysql-internal-tls-certmonger.yaml b/puppet/services/database/mysql-internal-tls-certmonger.yaml
deleted file mode 100644
index 9f7eaf57..00000000
--- a/puppet/services/database/mysql-internal-tls-certmonger.yaml
+++ /dev/null
@@ -1,47 +0,0 @@
-heat_template_version: ocata
-
-description: >
- MySQL configurations for using TLS via certmonger.
-
-parameters:
- ServiceNetMap:
- default: {}
- description: Mapping of service_name -> network name. Typically set
- via parameter_defaults in the resource registry. This
- mapping overrides those in ServiceNetMapDefaults.
- type: json
- # The following parameters are not needed by the template but are
- # required to pass the pep8 tests
- DefaultPasswords:
- default: {}
- type: json
- EndpointMap:
- default: {}
- description: Mapping of service endpoint -> protocol. Typically set
- via parameter_defaults in the resource registry.
- type: json
-
-outputs:
- role_data:
- description: MySQL configurations for using TLS via certmonger.
- value:
- service_name: mysql_internal_tls_certmonger
- config_settings:
- generate_service_certificates: true
- tripleo::profile::base::database::mysql::certificate_specs:
- service_certificate: '/etc/pki/tls/certs/mysql.crt'
- service_key: '/etc/pki/tls/private/mysql.key'
- hostname:
- str_replace:
- template: "%{hiera('cloud_name_NETWORK')}"
- params:
- NETWORK: {get_param: [ServiceNetMap, MysqlNetwork]}
- principal:
- str_replace:
- template: "mysql/%{hiera('cloud_name_NETWORK')}"
- params:
- NETWORK: {get_param: [ServiceNetMap, MysqlNetwork]}
- metadata_settings:
- - service: mysql
- network: {get_param: [ServiceNetMap, MysqlNetwork]}
- type: vip
diff --git a/puppet/services/database/mysql.yaml b/puppet/services/database/mysql.yaml
index 7078b60f..da55da3c 100644
--- a/puppet/services/database/mysql.yaml
+++ b/puppet/services/database/mysql.yaml
@@ -42,13 +42,13 @@ parameters:
description: The password for the nova db account
type: string
hidden: true
+ EnableInternalTLS:
+ type: boolean
+ default: false
-resources:
+conditions:
- MySQLTLS:
- type: OS::TripleO::Services::MySQLTLS
- properties:
- ServiceNetMap: {get_param: ServiceNetMap}
+ internal_tls_enabled: {equals: [{get_param: EnableInternalTLS}, true]}
outputs:
role_data:
@@ -57,7 +57,6 @@ outputs:
service_name: mysql
config_settings:
map_merge:
- - get_attr: [MySQLTLS, role_data, config_settings]
-
# The Galera package should work in cluster and
# non-cluster modes based on the config file.
@@ -102,10 +101,30 @@ outputs:
{get_param: [ServiceNetMap, MysqlNetwork]}
tripleo::profile::base::database::mysql::generate_dropin_file_limit:
{get_param: MysqlIncreaseFileLimit}
+ - generate_service_certificates: true
+ tripleo::profile::base::database::mysql::certificate_specs:
+ service_certificate: '/etc/pki/tls/certs/mysql.crt'
+ service_key: '/etc/pki/tls/private/mysql.key'
+ hostname:
+ str_replace:
+ template: "%{hiera('cloud_name_NETWORK')}"
+ params:
+ NETWORK: {get_param: [ServiceNetMap, MysqlNetwork]}
+ principal:
+ str_replace:
+ template: "mysql/%{hiera('cloud_name_NETWORK')}"
+ params:
+ NETWORK: {get_param: [ServiceNetMap, MysqlNetwork]}
step_config: |
include ::tripleo::profile::base::database::mysql
metadata_settings:
- get_attr: [MySQLTLS, role_data, metadata_settings]
+ if:
+ - internal_tls_enabled
+ -
+ - service: mysql
+ network: {get_param: [ServiceNetMap, MysqlNetwork]}
+ type: vip
+ - null
upgrade_tasks:
- name: Check for galera root password
tags: step0
diff --git a/puppet/services/kernel.yaml b/puppet/services/kernel.yaml
index fec455d1..ee4c771f 100644
--- a/puppet/services/kernel.yaml
+++ b/puppet/services/kernel.yaml
@@ -56,5 +56,7 @@ outputs:
value: 10000
kernel.pid_max:
value: {get_param: KernelPidMax}
+ kernel.dmesg_restrict:
+ value: 1
step_config: |
include ::tripleo::profile::base::kernel
diff --git a/puppet/services/rabbitmq-internal-tls-certmonger.yaml b/puppet/services/rabbitmq-internal-tls-certmonger.yaml
deleted file mode 100644
index 39d6b903..00000000
--- a/puppet/services/rabbitmq-internal-tls-certmonger.yaml
+++ /dev/null
@@ -1,47 +0,0 @@
-heat_template_version: ocata
-
-description: >
- RabbitMQ configurations for using TLS via certmonger.
-
-parameters:
- ServiceNetMap:
- default: {}
- description: Mapping of service_name -> network name. Typically set
- via parameter_defaults in the resource registry. This
- mapping overrides those in ServiceNetMapDefaults.
- type: json
- # The following parameters are not needed by the template but are
- # required to pass the pep8 tests
- DefaultPasswords:
- default: {}
- type: json
- EndpointMap:
- default: {}
- description: Mapping of service endpoint -> protocol. Typically set
- via parameter_defaults in the resource registry.
- type: json
-
-outputs:
- role_data:
- description: RabbitMQ configurations for using TLS via certmonger.
- value:
- service_name: rabbitmq_internal_tls_certmonger
- config_settings:
- generate_service_certificates: true
- tripleo::profile::base::rabbitmq::certificate_specs:
- service_certificate: '/etc/pki/tls/certs/rabbitmq.crt'
- service_key: '/etc/pki/tls/private/rabbitmq.key'
- hostname:
- str_replace:
- template: "%{hiera('fqdn_NETWORK')}"
- params:
- NETWORK: {get_param: [ServiceNetMap, RabbitmqNetwork]}
- principal:
- str_replace:
- template: "rabbitmq/%{hiera('fqdn_NETWORK')}"
- params:
- NETWORK: {get_param: [ServiceNetMap, RabbitmqNetwork]}
- metadata_settings:
- - service: rabbitmq
- network: {get_param: [ServiceNetMap, RabbitmqNetwork]}
- type: node
diff --git a/puppet/services/rabbitmq.yaml b/puppet/services/rabbitmq.yaml
index 92a0015a..47479783 100644
--- a/puppet/services/rabbitmq.yaml
+++ b/puppet/services/rabbitmq.yaml
@@ -52,14 +52,8 @@ parameters:
type: boolean
default: false
-resources:
-
- RabbitMQTLS:
- type: OS::TripleO::Services::RabbitMQTLS
- properties:
- ServiceNetMap: {get_param: ServiceNetMap}
- DefaultPasswords: {get_param: DefaultPasswords}
- EndpointMap: {get_param: EndpointMap}
+conditions:
+ internal_tls_enabled: {equals: [{get_param: EnableInternalTLS}, true]}
outputs:
role_data:
@@ -69,7 +63,6 @@ outputs:
monitoring_subscription: {get_param: MonitoringSubscriptionRabbitmq}
config_settings:
map_merge:
- - get_attr: [RabbitMQTLS, role_data, config_settings]
-
rabbitmq::file_limit: {get_param: RabbitFDLimit}
rabbitmq::default_user: {get_param: RabbitUserName}
@@ -124,6 +117,24 @@ outputs:
# TODO(jaosorior): Remove this once we set a proper default in
# puppet-tripleo
tripleo::profile::base::rabbitmq::enable_internal_tls: {get_param: EnableInternalTLS}
+ -
+ if:
+ - internal_tls_enabled
+ - generate_service_certificates: true
+ tripleo::profile::base::rabbitmq::certificate_specs:
+ service_certificate: '/etc/pki/tls/certs/rabbitmq.crt'
+ service_key: '/etc/pki/tls/private/rabbitmq.key'
+ hostname:
+ str_replace:
+ template: "%{hiera('fqdn_NETWORK')}"
+ params:
+ NETWORK: {get_param: [ServiceNetMap, RabbitmqNetwork]}
+ principal:
+ str_replace:
+ template: "rabbitmq/%{hiera('fqdn_NETWORK')}"
+ params:
+ NETWORK: {get_param: [ServiceNetMap, RabbitmqNetwork]}
+ - {}
step_config: |
include ::tripleo::profile::base::rabbitmq
upgrade_tasks:
@@ -134,4 +145,10 @@ outputs:
tags: step4
service: name=rabbitmq-server state=started
metadata_settings:
- get_attr: [RabbitMQTLS, role_data, metadata_settings]
+ if:
+ - internal_tls_enabled
+ -
+ - service: rabbitmq
+ network: {get_param: [ServiceNetMap, RabbitmqNetwork]}
+ type: node
+ - null
diff --git a/releasenotes/notes/restrict-access-to-kernel-message-buffer-809160674b92a073.yaml b/releasenotes/notes/restrict-access-to-kernel-message-buffer-809160674b92a073.yaml
new file mode 100644
index 00000000..c24e8921
--- /dev/null
+++ b/releasenotes/notes/restrict-access-to-kernel-message-buffer-809160674b92a073.yaml
@@ -0,0 +1,11 @@
+---
+upgrade:
+ - |
+ The kernel.dmesg_restrict is now set to 1 to prevent exposure of sensitive
+ kernel address information with unprivileged access. Deployments that set
+ or depend on values other than 1 for kernel.dmesg_restrict may be affected
+ by upgrading.
+security:
+ - |
+ Kernel syslog contains sensitive kernel address information, setting
+ kernel.dmesg_restrict to avoid unprivileged access to this information.