4077934519
* [jjo] add DIND support to contrib/ - add contrib/dind with ansible playbook to create "node" containers, and setup them to mimic host nodes as much as possible (using Ubuntu images), see contrib/dind/README.md - nodes' /etc/hosts editing via `blockinfile` and `lineinfile` need `unsafe_writes: yes` because /etc/hosts are mounted by docker, and thus can't be handled atomically (modify copy + rename) * dind-host role: set node container hostname on creation * add "Resulting deployment" section with some CLI outputs * typo * selectable node_distro: debian, ubuntu * some fixes for node_distro: ubuntu * cpu optimization: add early `pkill -STOP agetty` * typo * add centos dind support ;) * add kubespray-dind.yaml, support fedora - add kubespray-dind.yaml (former custom.yaml at README.md) - rework README.md as per above - use some YAML power to share distros' commonality - add fedora support * create unique /etc/machine-id and other updates - create unique /etc/machine-id in each docker node, used as seed for e.g. weave mac addresses - with above, now netchecker 100% passes WoHooOO! 🎉 🎉 🎉 - updated README.md output from (1.12.1, verified netcheck) * minor typos * fix centos node creation, needs earlier udevadm removal to avoid flaky facts, also verified netcheck Ok \o/ * add Q&D test-distros.sh, back to manual /etc/machine-id hack * run-test-distros.sh cosmetics and minor fixes * run-test-distros.sh: $rc fix and minor formatting changes * run-test-distros.sh output cosmetics
87 lines
3.1 KiB
YAML
87 lines
3.1 KiB
YAML
- name: set_fact distro_setup
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set_fact:
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distro_setup: "{{ distro_settings[node_distro] }}"
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- name: set_fact other distro settings
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set_fact:
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distro_image: "{{ distro_setup['image'] }}"
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distro_init: "{{ distro_setup['init'] }}"
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distro_pid1_exe: "{{ distro_setup['pid1_exe'] }}"
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distro_raw_setup: "{{ distro_setup['raw_setup'] }}"
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distro_raw_setup_done: "{{ distro_setup['raw_setup_done'] }}"
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distro_agetty_svc: "{{ distro_setup['agetty_svc'] }}"
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- name: Create dind node containers from "containers" inventory section
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docker_container:
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image: "{{ distro_image }}"
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name: "{{ item }}"
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state: started
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hostname: "{{ item }}"
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command: "{{ distro_init }}"
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#recreate: yes
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privileged: true
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tmpfs:
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- /sys/module/nf_conntrack/parameters
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volumes:
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- /boot:/boot
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- /lib/modules:/lib/modules
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- "{{ item }}:/dind/docker"
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register: containers
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with_items: "{{groups.containers}}"
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tags:
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- addresses
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- name: Gather list of containers IPs
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set_fact:
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addresses: "{{ containers.results | map(attribute='ansible_facts') | map(attribute='docker_container') | map(attribute='NetworkSettings') | map(attribute='IPAddress') | list }}"
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tags:
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- addresses
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- name: Create inventory_builder helper already set with the list of node containers' IPs
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template:
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src: inventory_builder.sh.j2
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dest: /tmp/kubespray.dind.inventory_builder.sh
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mode: 0755
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tags:
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- addresses
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- name: Install needed packages into node containers via raw, need to wait for possible systemd packages to finish installing
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raw: |
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# agetty processes churn a lot of cpu time failing on inexistent ttys, early STOP them, to rip them in below task
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pkill -STOP agetty || true
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{{ distro_raw_setup_done }} && echo SKIPPED && exit 0
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until [ "$(readlink /proc/1/exe)" = "{{ distro_pid1_exe }}" ] ; do sleep 1; done
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{{ distro_raw_setup }}
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delegate_to: "{{ item._ansible_item_label }}"
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with_items: "{{ containers.results }}"
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register: result
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changed_when: result.stdout.find("SKIPPED") < 0
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- name: Remove gettys from node containers
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raw: |
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until test -S /var/run/dbus/system_bus_socket; do sleep 1; done
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systemctl disable {{ distro_agetty_svc }}
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systemctl stop {{ distro_agetty_svc }}
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delegate_to: "{{ item._ansible_item_label }}"
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with_items: "{{ containers.results }}"
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changed_when: false
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# Running systemd-machine-id-setup doesn't create a unique id for each node container on Debian,
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# handle manually
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- name: Re-create unique machine-id (as we may just get what comes in the docker image), needed by some CNIs for mac address seeding (notably weave)
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raw: |
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echo {{ item | hash('sha1') }} > /etc/machine-id.new
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mv -b /etc/machine-id.new /etc/machine-id
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cmp /etc/machine-id /etc/machine-id~ || true
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systemctl daemon-reload
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delegate_to: "{{ item._ansible_item_label }}"
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with_items: "{{ containers.results }}"
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- name: Early hack image install to adapt for DIND
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raw: |
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rm -fv /usr/bin/udevadm /usr/sbin/udevadm
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delegate_to: "{{ item._ansible_item_label }}"
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with_items: "{{ containers.results }}"
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register: result
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changed_when: result.stdout.find("removed") >= 0
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