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98f654fdea
machinectl fails since 21935150a0 as it's now
mounting onto a file descriptor in a target namespace, without joining the
target's PID namespace.
Note that it's not enough to setns CLONE_NEWPID, but a double-fork is required
as well, as implemented by namespace_fork().
Add a test case to TEST-13-NSPAWN to cover this use case.
68 lines
1.5 KiB
Bash
Executable File
68 lines
1.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -e
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set -u
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set -o pipefail
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root="${1:?Usage $0 container-root}"
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mkdir -p "$root"
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mkdir "$root/bin"
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cp $(type -P busybox) "$root/bin"
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os_release=$(test -e /etc/os-release && echo /etc/os-release || echo /usr/lib/os-release)
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ID_LIKE=$(awk -F= '$1=="ID_LIKE" { print $2 ;}' $os_release)
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if [[ "$ID_LIKE" = *"suse"* ]]; then
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mkdir -p "$root/lib"
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mkdir -p "$root/lib64"
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for lib in $(find /lib*/ld*); do
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[[ -d $root/$(dirname $lib) ]] || mkdir -p $root/$(dirname $lib)
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cp $lib $root/$lib
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done
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fi
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mkdir -p "$root/usr/lib"
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touch "$root/usr/lib/os-release"
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ln -s busybox "$root/bin/sh"
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ln -s busybox "$root/bin/cat"
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ln -s busybox "$root/bin/tr"
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ln -s busybox "$root/bin/ps"
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ln -s busybox "$root/bin/ip"
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ln -s busybox "$root/bin/seq"
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ln -s busybox "$root/bin/sleep"
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ln -s busybox "$root/bin/test"
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mkdir -p "$root/sbin"
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cat <<'EOF' >"$root/sbin/init"
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#!/bin/sh
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printf "ps aufx:\n"
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ps aufx
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printf "/proc/1/cmdline:\n"
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printf "%s\n\n" "$(tr '\0' ' ' </proc/1/cmdline)"
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printf "/proc/1/environ:\n"
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printf "%s\n\n" "$(tr '\0' '\n' </proc/1/environ)"
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printf "/proc/1/mountinfo:\n"
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cat /proc/self/mountinfo
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printf "\n"
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printf "/proc/1/cgroup:\n"
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printf "%s\n\n" "$(cat /proc/1/cgroup)"
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printf "/proc/1/uid_map:\n"
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printf "%s\n\n" "$(cat /proc/1/uid_map)"
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printf "/proc/1/setgroups:\n"
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printf "%s\n\n" "$(cat /proc/1/setgroups)"
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printf "/proc/1/gid_map:\n"
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printf "%s\n\n" "$(cat /proc/1/gid_map)"
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printf "ip link:\n"
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ip link
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EOF
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chmod +x "$root/sbin/init"
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