42545f1c3c
This change modifies the LXC image cache system to use machine control, which is part of systemd, to manage images for us. This will give us insight into the cached images which we had not had before all through the `machinectl` cli utility. This change also modifies the image fetch process allowing it to be faster and more transparent to the enduser. Part of the slowness in image fetching and caching is that it happens on every run even if it's not needed. This change will now check the cache expiry and state of the image within `machinectl` and only run the cache update when needed or instructed to do so. Documentation on what can be done with the `machinectl` CLI utility can be found here: * https://www.freedesktop.org/software/systemd/man/machinectl.html Change-Id: Ic7f8bf400ec5781b4be67539bc6c1523069d0ab2 Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>
158 lines
6.2 KiB
YAML
158 lines
6.2 KiB
YAML
---
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# Copyright 2014, Rackspace US, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Environment to use when building LXC caches
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# You can set http_proxy environment variables here for example
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# if you would like to proxy all image downloads
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lxc_cache_environment: {}
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# Set the package install state for distribution and pip packages
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# Options are 'present' and 'latest'
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lxc_hosts_package_state: "latest"
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lxc_hosts_pip_package_state: "latest"
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# Mappings from Ansible reported architecture to distro release architecture
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lxc_architecture_mapping:
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x86_64: amd64
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ppc64le: ppc64el
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# lxc container rootfs directory and cache path
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lxc_container_directory: "/var/lib/lxc"
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lxc_container_cache_path: "/var/cache/lxc/download"
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# The container backing store can be set to 'overlayfs' to use overlayfs
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# This should only be done for production use with a linux kernel > 3.14
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# which is when overlayfs was merged into the mainline kernel
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# lxc_container_backing_store: overlayfs
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# The container backing method can be set to 'copy-on-write' to use LVM
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# snapshot-backed containers when the container backing store is set to
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# 'lvm'.
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# lxc_container_backing_method: copy-on-write
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# When using a base container to snapshot from for the overlayfs or LVM
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# copy-on-write backing stored, the base container can be set.
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lxc_container_base_name: "{{ lxc_cache_map.distro }}-{{ lxc_cache_map.release }}-{{ lxc_cache_map.arch }}"
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# lxc container net network
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lxc_net_bridge: lxcbr0
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lxc_net_bridge_port: none
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lxc_net_address: 10.0.3.1
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lxc_net_netmask: 255.255.255.0
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lxc_net_gateway: null ## if null, no gateway will be on the LXC bridge. lxc_net_nat must be "false" to use a gateway.
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#lxc_net_mtu: 1500 ##setting this variable will add mtu configuration for the lxc config and network bridge
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# lxc container nat enabled
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lxc_net_nat: true ## If "true", nat rules will be created with the lxc network.
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# Enable iptables for lxc network
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lxc_net_manage_iptables: true ## If "true" iptables rules will be added when the bridge is up and deleted when bridge is down
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# lxc container dhcp settings
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lxc_net_dhcp_range: 10.0.3.2,10.0.3.253
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lxc_net_dhcp_max: 253
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lxc_net_dhcp_config: ''
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lxc_net_dnsmasq_user: lxc-dnsmasq
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lxc_net_domain: ''
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# lxc network ipv6 settings
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lxc_net6_address: null ## ie. fd05:ffb8:32b4:1212::1
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lxc_net6_netmask: null ## ie. 64
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lxc_net6_nat: false
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# lxc_container_net_link variable should be set to the lxc-net bridge.
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lxc_container_net_link: "{{ lxc_net_bridge }}" ## name of the host bridge to attach to
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lxc_container_net_type: veth ## lxc network interface type (veth, phys, vlan, macvlan, empty)
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lxc_container_net_name: eth0 ## name of the interface inside the container.
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# System control kernel tuning
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lxc_kernel_options:
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- { key: 'fs.inotify.max_user_instances', value: 1024 }
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lxc_pip_packages:
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- lxc-python2
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lxc_cache_sshd_configuration:
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- { regexp: "^PermitRootLogin", line: "PermitRootLogin yes" }
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- { regexp: "^TCPKeepAlive", line: "TCPKeepAlive yes" }
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- { regexp: "^UseDNS", line: "UseDNS no" }
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- { regexp: "^X11Forwarding", line: "X11Forwarding no" }
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- { regexp: "^PasswordAuthentication", line: "PasswordAuthentication no" }
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# The compression ratio used when creating the container cache rootfs archive
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lxc_image_compression_ratio: 0
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# A list of files may be copied into the container image cache during its preparation.
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# Example:
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# lxc_container_cache_files:
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# - src: "/etc/openstack_deploy/files/etc/issue"
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# dest: "/etc/issue"
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lxc_container_cache_files: []
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# DNS servers to use during cache preparation
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lxc_cache_prep_dns:
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- "{{ lxc_net_address }}"
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# Custom shell commands to run before/after the LXC cache prep process has taken
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# place.
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lxc_cache_prep_pre_commands: '## pre command skipped ##'
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lxc_cache_prep_post_commands: '## post command skipped ##'
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# The DNS name of the LXD server to source the base container cache from
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lxc_image_cache_server: https://images.linuxcontainers.org
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# Path to images on server
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lxc_image_cache_server_path: "{{ lxc_image_cache_server }}/images/{{ lxc_cache_map.distro }}/{{ lxc_cache_map.release }}/{{ lxc_cache_map.arch }}/{{ lxc_cache_map.variant }}/"
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# Local path to cached image
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lxc_image_cache_path: "/var/lib/machines/{{ lxc_container_base_name }}"
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# Mode to pull image. This is used to pull the image from a remote source.
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# Valid options are [pull-tar, pull-raw]
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lxc_image_cache_pull_mode: pull-tar
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# Set this option to true to pull a new cached image.
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lxc_image_cache_refresh: false
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# The keyservers to use when validating GPG keys for the downloaded cache
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lxc_image_cache_primary_keyserver: hkp://p80.pool.sks-keyservers.net:80
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lxc_image_cache_secondary_keyserver: hkp://keyserver.ubuntu.com:80
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## Default download template options
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## This can be customized to use a local build server and options.
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## By default these options will be fulfilled by the distro specific
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## variable files found in vars/
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# lxc_cache_download_template_options: >
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# --dist NAME_OF_DISTRO
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# --release DISTRO_RELEASE
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# --arch CONTAINER_ARCH
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# --force-cache
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# --server SERVER_TO_GET_IMAGES_FROM
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lxc_cache_default_variant: default
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lxc_cache_download_template_extra_options: ""
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lxc_cache_download_template_options: >
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--dist {{ lxc_cache_map.distro }}
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--release {{ lxc_cache_map.release }}
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--arch {{ lxc_cache_map.arch }}
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--force-cache
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--server {{ lxc_image_cache_server }}
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--variant {{ lxc_cache_default_variant }}
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{{ lxc_cache_download_template_extra_options }}
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# LXC must be installed from a COPR repository on CentOS 7 since the version
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# provided in EPEL is much too old (1.x).
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lxc_centos_package_baseurl: https://copr-be.cloud.fedoraproject.org/results/thm/lxc2.0/epel-7-x86_64/
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lxc_centos_package_key: https://copr-be.cloud.fedoraproject.org/results/thm/lxc2.0/pubkey.gpg
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