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1a87aca209
Extends container-base to create a systemd enabled container that is
an appropriate starting point if a systemd applciation is being run
or a mulit-user style environment is required.
The application specified in SYSTEMD_CONTAINER_APP will be installed
and be available to be executed.
The rootfs of this container type is post processed to enable and
disable services as specified by the containeer definition. This allows
service that are not appropriate in a containerized environemnt to
be disabled (i.e. getty login)
The list of services can be found in the recipes themselves.
This container enables ssh by default, so that it can be executed
in the background and then accessed as a full environment.
Note: this is currently a priviledged container if run under docker.
There are multiple ways to add/remove permissions from the container,
and most are configurable during launch:
% root@qemuarm64-54:~# docker run -d --rm --name systemd_test --privileged --cap-add SYS_ADMIN \
--security-opt seccomp=unconfined --cgroup-parent=docker.slice --cgroupns private \
--tmpfs /tmp --tmpfs /run --tmpfs /run/lock zeddii/systemd-container-base
or
% docker run -d --rm --name systemd_test --privileged --cgroup-parent=docker.slice \
--cgroupns private zeddii/c3-systemd-container
% root@qemuarm64-54:~# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4b07cc907e26 zeddii/c3-systemd-container "/sbin/init" 5 minutes ago Up 5 minutes systemd_test
% podman run -d --name systemd_test --privileged --cgroupns=host --tmpfs /tmp --tmpfs /run --tmpfs /run/lock \
-v /sys/fs/cgroup:/sys/fs/cgroup:ro zeddii/systemd-container-base
% ctr container create --privileged --runtime="io.containerd.runc.v2" \
--mount type=bind,src=/sys/fs/cgroup,dst=/sys/fs/cgroup,options=rbind:rw \
docker.io/zeddii/systemd-container-base:latest my_systemd_container /sbin/init
% ctr task start --detach my_systemd_container
% ctr task ls
TASK PID STATUS
my_systemd_container 690 RUNNING
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
18 lines
678 B
BlitzBasic
18 lines
678 B
BlitzBasic
SUMMARY = "Systemd system container for ${SYSTEMD_CONTAINER_APP}"
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DESCRIPTION = "A small systemd system container which will run \
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${SYSTEMD_CONTAINER_APP}."
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SYSTEMD_CONTAINER_APP ?= ""
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# Use local.conf to specify the application(s) to install
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IMAGE_INSTALL += "${SYSTEMD_CONTAINER_APP}"
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# Use local.conf to specify additional systemd services to disable. To overwrite
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# the default list use SERVICES_TO_DISABLE:pn-systemd-container in local.conf
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SERVICES_TO_DISABLE:append = " ${SYSTEMD_CONTAINER_DISABLE_SERVICES}"
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# Use local.conf to enable systemd services
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SERVICES_TO_ENABLE += "${SYSTEMD_CONTAINER_ENABLE_SERVICES}"
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require container-systemd-base.inc
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