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authorDaniel Baumann <daniel.baumann@progress-linux.org>2021-04-11 13:52:42 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2021-04-11 13:52:42 +0000
commitc759c2b9c54ba0262980214cd3d7cb6566ed7c7b (patch)
treee54395585d3605a86e91680ea200779058cc10e5 /libexec/container/enter
parentAdding upstream version 20210101. (diff)
downloadopen-infrastructure-compute-tools-c759c2b9c54ba0262980214cd3d7cb6566ed7c7b.tar.xz
open-infrastructure-compute-tools-c759c2b9c54ba0262980214cd3d7cb6566ed7c7b.zip
Adding upstream version 20210411.upstream/20210411
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'libexec/container/enter')
-rwxr-xr-xlibexec/container/enter126
1 files changed, 126 insertions, 0 deletions
diff --git a/libexec/container/enter b/libexec/container/enter
new file mode 100755
index 0000000..2664fdc
--- /dev/null
+++ b/libexec/container/enter
@@ -0,0 +1,126 @@
+#!/bin/sh
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+set -e
+
+PROJECT="open-infrastructure"
+SOFTWARE="compute-tools"
+PROGRAM="container"
+COMMAND="$(basename ${0})"
+
+HOOKS="/etc/${SOFTWARE}/hooks"
+MACHINES="/var/lib/machines"
+
+Parameters ()
+{
+ GETOPT_LONGOPTIONS="name:,"
+ GETOPT_OPTIONS="n:,"
+
+ PARAMETERS="$(getopt --longoptions ${GETOPT_LONGOPTIONS} --name=${COMMAND} --options ${GETOPT_OPTIONS} --shell sh -- ${@})"
+
+ if [ "${?}" != "0" ]
+ then
+ echo "'${COMMAND}': getopt exit" >&2
+ exit 1
+ fi
+
+ eval set -- "${PARAMETERS}"
+
+ while true
+ do
+ case "${1}" in
+ -n|--name)
+ NAME="${2}"
+ shift 2
+ ;;
+
+ --)
+ shift 1
+ break
+ ;;
+
+ *)
+ echo "'${COMMAND}': getopt error" >&2
+ exit 1
+ ;;
+ esac
+ done
+}
+
+Usage ()
+{
+ echo "Usage: ${PROGRAM} ${COMMAND} -n|--name NAME" >&2
+ exit 1
+}
+
+Parameters "${@}"
+
+if [ -z "${NAME}" ]
+then
+ Usage
+fi
+
+if [ ! -e "${MACHINES}/${NAME}" ]
+then
+ echo "'${NAME}': no such container" >&2
+ exit 1
+fi
+
+STATE="$(machinectl show ${NAME} 2>&1 | awk -FState= '/^State=/ { print $2 }')"
+
+case "${STATE}" in
+ running)
+ ;;
+
+ *)
+ echo "'${NAME}': container is not running" >&2
+ exit 1
+ ;;
+esac
+
+LEADER="$(machinectl status ${NAME} | awk '/Leader: / { print $2 }')"
+
+# Pre hooks
+for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+do
+ if [ -x "${FILE}" ]
+ then
+ "${FILE}"
+ fi
+done
+
+SSH_CLIENT="${SSH_CLIENT:-127.0.0.1 0 0}"
+
+# Run
+nsenter --all --target "${LEADER}" --wd="${MACHINES}/${NAME}/root" /usr/bin/script -c "LC_ALL=C.UTF-8 /bin/bash -l" -q /dev/null
+
+case "${SSH_CLIENT}" in
+ 127.0.0.1*)
+ unset SSH_CLIENT
+ ;;
+esac
+
+# Post hooks
+for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+do
+ if [ -x "${FILE}" ]
+ then
+ "${FILE}"
+ fi
+done