mirror of
https://github.com/linuxkit/linuxkit.git
synced 2025-07-21 18:11:35 +00:00
ima: use ima-utils package instead of new init
Signed-off-by: Tycho Andersen <tycho@docker.com>
This commit is contained in:
Tycho Andersen
parent
4b29c738e0
commit
3fd6337a45
@ -2,7 +2,7 @@
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run: ima-namespace-kernel
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../../bin/linuxkit run ima-namespace
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ima-namespace-kernel:
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ima-namespace-kernel: ima-namespace.yml
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../../bin/moby build ima-namespace
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.PHONY: clean
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@ -1,26 +1,60 @@
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kernel:
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image: "linuxkit/kernel-ima:4.11.x"
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cmdline: "console=ttyS0 page_poison=1 ima_appraise=enforce_ns"
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image: "linuxkit/kernel-ima:4.11.1-"
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cmdline: "console=ttyS0 console=tty0 page_poison=1 ima_appraise=enforce_ns"
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init:
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- linuxkit/init-ima:1bf49efd6df8d137813884211860607c58ff383e
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- mobylinux/runc:b0fb122e10dbb7e4e45115177a61a3f8d68c19a9
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- mobylinux/containerd:18eaf72f3f4f9a9f29ca1951f66df701f873060b
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- mobylinux/ca-certificates:eabc5a6e59f05aa91529d80e9a595b85b046f935
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- linuxkit/init:b3740303f3d1e5689a84c87b7dfb48fd2a40a192
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- linuxkit/runc:47b1c38d63468c0f3078f8b1b055d07965a1895d
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- linuxkit/containerd:cf2614f5a96c569a0bd4bd54e054a65ba17d167f
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- linuxkit/ca-certificates:3344cdca1bc59fdfa17bd7f0fcbf491b9dbaa288
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- linuxkit/ima-utils:fe119c7dac08884f4144cd106dc279ddd8b37517
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onboot:
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- name: sysctl
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image: "mobylinux/sysctl:2cf2f9d5b4d314ba1bfc22b2fe931924af666d8c"
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image: "linuxkit/sysctl:2cf2f9d5b4d314ba1bfc22b2fe931924af666d8c"
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net: host
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pid: host
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ipc: host
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capabilities:
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- CAP_SYS_ADMIN
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readonly: true
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- name: binfmt
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image: "linuxkit/binfmt:131026c0cf6084467316395fed3b358f64bda00c"
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binds:
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- /proc/sys/fs/binfmt_misc:/binfmt_misc
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readonly: true
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- name: dhcpcd
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image: "linuxkit/dhcpcd:2def74ab3f9233b4c09ebb196ba47c27c08b0ed8"
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binds:
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- /var:/var
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- /tmp/etc:/etc
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capabilities:
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- CAP_NET_ADMIN
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- CAP_NET_BIND_SERVICE
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- CAP_NET_RAW
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net: host
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command: ["/sbin/dhcpcd", "--nobackground", "-f", "/dhcpcd.conf", "-1"]
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services:
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- name: rngd
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image: "mobylinux/rngd:3dad6dd43270fa632ac031e99d1947f20b22eec9"
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image: "linuxkit/rngd:61a07ced77a9747708223ca16a4aec621eacf518"
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capabilities:
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- CAP_SYS_ADMIN
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oomScoreAdj: -800
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readonly: true
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- name: nginx
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image: "nginx:alpine"
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capabilities:
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- CAP_NET_BIND_SERVICE
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- CAP_CHOWN
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- CAP_SETUID
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- CAP_SETGID
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- CAP_DAC_OVERRIDE
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net: host
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files:
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- path: etc/docker/daemon.json
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contents: '{"debug": true}'
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trust:
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image:
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- linuxkit/kernel
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- linuxkit/binfmt
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- linuxkit/rngd
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outputs:
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- format: kernel+initrd
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9
projects/ima-namespace/ima-utils/Dockerfile
Normal file
9
projects/ima-namespace/ima-utils/Dockerfile
Normal file
@ -0,0 +1,9 @@
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FROM alpine:edge as utils
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RUN apk add --no-cache attr openssl
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FROM scratch
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ENTRYPOINT []
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CMD []
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WORKDIR /
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COPY --from=utils /usr/bin/openssl /usr/bin/setfattr /usr/bin/
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COPY --from=utils /lib/libattr.so* /lib/libssl.so* /lib/libcrypto.so* /lib/
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@ -1,8 +1,8 @@
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.PHONY: tag push
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default: push
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IMAGE=init-ima
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DEPS=Dockerfile init $(wildcard etc/*) $(wildcard etc/init.d/*)
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IMAGE=ima-utils
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DEPS=Dockerfile
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HASH?=$(shell git ls-tree HEAD -- ../$(notdir $(CURDIR)) | awk '{print $$3}')
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@ -1,12 +0,0 @@
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# Use sha256 here to get a fixed version
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FROM alpine:edge
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ENTRYPOINT []
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CMD []
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WORKDIR /
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COPY init /
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COPY etc etc/
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RUN ip a
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RUN apk update
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RUN apk add --no-cache attr openssl
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RUN rm -rf /mirror /etc/apk/repositories /etc/apk/keys
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@ -1,9 +0,0 @@
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#!/bin/sh
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# bring up containerd
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ulimit -n 1048576
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ulimit -p unlimited
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printf "\nStarting containerd\n"
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mkdir -p /var/log
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exec /usr/bin/containerd
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@ -1,32 +0,0 @@
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#!/bin/sh
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# start onboot containers, run to completion
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if [ -d /containers/onboot ]
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then
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for f in $(find /containers/onboot -mindepth 1 -maxdepth 1 | sort)
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do
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base="$(basename $f)"
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/bin/mount --bind "$f/rootfs" "$f/rootfs"
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mount -o remount,rw "$f/rootfs"
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/usr/bin/runc run --bundle "$f" "$(basename $f)"
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printf " - $base\n"
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done
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fi
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# start service containers
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if [ -d /containers/services ]
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then
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for f in $(find /containers/services -mindepth 1 -maxdepth 1 | sort)
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do
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base="$(basename $f)"
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/bin/mount --bind "$f/rootfs" "$f/rootfs"
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mount -o remount,rw "$f/rootfs"
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log="/var/log/$base.log"
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ctr run --runtime-config "$f/config.json" --rootfs "$f/rootfs" --id "$(basename $f)" </dev/null 2>$log >$log &
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printf " - $base\n"
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done
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fi
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wait
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@ -1,112 +0,0 @@
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#!/bin/sh
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# mount filesystems
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mount -n -t proc proc /proc -o nodev,nosuid,noexec,relatime
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mount -n -t tmpfs tmpfs /run -o nodev,nosuid,noexec,relatime,size=10%,mode=755
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mount -n -t tmpfs tmpfs /tmp -o nodev,nosuid,noexec,relatime,size=10%,mode=1777
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# mount devfs
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mount -n -t devtmpfs dev /dev -o nosuid,noexec,relatime,size=10m,nr_inodes=248418,mode=755
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# devices
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[ -c /dev/console ] || mknod -m 600 /dev/console c 5 1
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[ -c /dev/tty1 ] || mknod -m 620 /dev/tty1 c 4 1
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[ -c /dev/tty ] || mknod -m 666 /dev/tty c 5 0
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[ -c /dev/null ] || mknod -m 666 /dev/null c 1 3
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[ -c /dev/kmsg ] || mknod -m 660 /dev/kmsg c 1 11
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# extra symbolic links not provided by default
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[ -e /dev/fd ] || ln -snf /proc/self/fd /dev/fd
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[ -e /dev/stdin ] || ln -snf /proc/self/fd/0 /dev/stdin
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[ -e /dev/stdout ] || ln -snf /proc/self/fd/1 /dev/stdout
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[ -e /dev/stderr ] || ln -snf /proc/self/fd/2 /dev/stderr
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[ -e /proc/kcore ] && ln -snf /proc/kcore /dev/core
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# devfs filesystems
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mkdir -p -m 1777 /dev/mqueue
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mkdir -p -m 1777 /dev/shm
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mkdir -p -m 0755 /dev/pts
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mount -n -t mqueue -o noexec,nosuid,nodev mqueue /dev/mqueue
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mount -n -t tmpfs -o noexec,nosuid,nodev,mode=1777 shm /dev/shm
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mount -n -t devpts -o noexec,nosuid,gid=5,mode=0620 devpts /dev/pts
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# mount sysfs
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sysfs_opts=nodev,noexec,nosuid
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mount -n -t sysfs -o ${sysfs_opts} sysfs /sys
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[ -d /sys/kernel/security ] && mount -n -t securityfs -o ${sysfs_opts} securityfs /sys/kernel/security
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[ -d /sys/kernel/debug ] && mount -n -t debugfs -o ${sysfs_opts} debugfs /sys/kernel/debug
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[ -d /sys/kernel/config ] && mount -n -t configfs -o ${sysfs_opts} configfs /sys/kernel/config
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[ -d /sys/fs/fuse/connections ] && mount -n -t fusectl -o ${sysfs_opts} fusectl /sys/fs/fuse/connections
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[ -d /sys/fs/selinux ] && mount -n -t selinuxfs -o nosuid,noexec selinuxfs /sys/fs/selinux
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[ -d /sys/fs/pstore ] && mount -n -t pstore pstore -o ${sysfs_opts} /sys/fs/pstore
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[ -d /sys/firmware/efi/efivars ] && mount -n -t efivarfs -o ro,${sysfs_opts} efivarfs /sys/firmware/efi/efivars
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# misc /proc mounted fs
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[ -d /proc/sys/fs/binfmt_misc ] && mount -t binfmt_misc -o nodev,noexec,nosuid binfmt_misc /proc/sys/fs/binfmt_misc
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# mount cgroups
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mount -n -t tmpfs -o nodev,noexec,nosuid,mode=755,size=10m cgroup_root /sys/fs/cgroup
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while read name hier groups enabled rest
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do
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case "${enabled}" in
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1) mkdir -p /sys/fs/cgroup/${name}
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mount -n -t cgroup -o ${sysfs_opts},${name} ${name} /sys/fs/cgroup/${name}
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;;
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esac
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done < /proc/cgroups
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# use hierarchy for memory
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echo 1 > /sys/fs/cgroup/memory/memory.use_hierarchy
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# for compatibility
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mkdir -p /sys/fs/cgroup/systemd
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mount -t cgroup -o none,name=systemd cgroup /sys/fs/cgroup/systemd
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# start mdev for hotplug
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echo "/sbin/mdev" > /proc/sys/kernel/hotplug
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# mdev -s will not create /dev/usb[1-9] devices with recent kernels
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# so we trigger hotplug events for usb for now
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for i in $(find /sys/devices -name 'usb[0-9]*'); do
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[ -e $i/uevent ] && echo add > $i/uevent
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done
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mdev -s
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# set hostname
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if [ -s /etc/hostname ]
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then
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hostname -F /etc/hostname
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fi
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if [ $(hostname) = "(none)" -a -f /sys/class/net/eth0/address ]
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then
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mac=$(cat /sys/class/net/eth0/address)
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hostname linuxkit-$(echo $mac | sed 's/://g')
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fi
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# set system clock from hwclock
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hwclock --hctosys --utc
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# bring up loopback interface
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ip addr add 127.0.0.1/8 dev lo brd + scope host
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ip route add 127.0.0.0/8 dev lo scope host
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ip link set lo up
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# for containerising dhcpcd and other containers that need writable etc
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mkdir /tmp/etc
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mv /etc/resolv.conf /tmp/etc/resolv.conf
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ln -snf /tmp/etc/resolv.conf /etc/resolv.conf
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# remount rootfs as readonly
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mount -o remount,ro /
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# make /var writeable and shared
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mount -o bind /var /var
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mount -o remount,rw,nodev,nosuid,noexec,relatime /var /var
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mount --make-rshared /var
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# make / rshared
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mount --make-rshared /
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@ -1,15 +0,0 @@
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# /etc/inittab
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::sysinit:/etc/init.d/rcS
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::once:/etc/init.d/containerd
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::once:/etc/init.d/containers
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# Stuff to do for the 3-finger salute
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::ctrlaltdel:/sbin/reboot
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# Stuff to do before rebooting
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::shutdown:/usr/sbin/killall5 -15
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::shutdown:/bin/sleep 5
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::shutdown:/usr/sbin/killall5 -9
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::shutdown:/bin/echo "Unmounting filesystems"
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::shutdown:/bin/umount -a -r
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@ -1,12 +0,0 @@
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Welcome to LinuxKit
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## .
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## ## ## ==
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## ## ## ## ## ===
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/"""""""""""""""""\___/ ===
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~~~ {~~ ~~~~ ~~~ ~~~~ ~~~ ~ / ===- ~~~
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\______ o __/
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\ \ __/
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\____\_______/
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@ -1,45 +0,0 @@
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#!/bin/sh
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setup_console() {
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tty=${1%,*}
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speed=${1#*,}
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inittab="$2"
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securetty="$3"
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line=
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term="linux"
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[ "$speed" = "$1" ] && speed=115200
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case "$tty" in
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ttyS*|ttyAMA*|ttyUSB*|ttyMFD*)
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line="-L"
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term="vt100"
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;;
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tty?)
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line=""
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speed="38400"
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term=""
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;;
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esac
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# skip consoles already in inittab
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grep -q "^$tty:" "$inittab" && return
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echo "$tty::once:cat /etc/issue" >> "$inittab"
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echo "$tty::respawn:/sbin/getty -n -l /bin/sh $line $speed $tty $term" >> "$inittab"
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if ! grep -q -w "$tty" "$securetty"; then
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echo "$tty" >> "$securetty"
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fi
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}
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/bin/mount -t tmpfs tmpfs /mnt
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/bin/cp -a / /mnt 2>/dev/null
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/bin/mount -t proc -o noexec,nosuid,nodev proc /proc
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for opt in $(cat /proc/cmdline); do
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case "$opt" in
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console=*)
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setup_console ${opt#console=} /mnt/etc/inittab /mnt/etc/securetty;;
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esac
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done
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exec /bin/busybox switch_root /mnt /sbin/init
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