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authorDaniel Baumann <daniel.baumann@open-infrastructure.net>2016-06-16 06:58:41 +0000
committerDaniel Baumann <daniel.baumann@open-infrastructure.net>2016-07-01 09:21:24 +0000
commit4cc801f9945f8ee865a50d50be74ce8289e3a49b (patch)
tree5beb1623293c9068d4a42242966eddf3cd5a0aac /lib/container
parentShowing only local containers by default in container list command. (diff)
downloadcompute-tools-4cc801f9945f8ee865a50d50be74ce8289e3a49b.tar.xz
compute-tools-4cc801f9945f8ee865a50d50be74ce8289e3a49b.zip
Adding container enter command.
Signed-off-by: Daniel Baumann <daniel.baumann@open-infrastructure.net>
Diffstat (limited to 'lib/container')
-rwxr-xr-xlib/container/enter97
1 files changed, 97 insertions, 0 deletions
diff --git a/lib/container/enter b/lib/container/enter
new file mode 100755
index 0000000..0de88da
--- /dev/null
+++ b/lib/container/enter
@@ -0,0 +1,97 @@
+#!/bin/sh
+
+# container-tools - Manage systemd-nspawn containers
+# Copyright (C) 2014-2016 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# 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 <http://www.gnu.org/licenses/>.
+
+set -e
+
+COMMAND="$(basename ${0})"
+
+MACHINES="/var/lib/machines"
+
+Parameters ()
+{
+ LONG_OPTIONS="name:,"
+
+ OPTIONS="n:"
+
+ PARAMETERS="$(getopt --longoptions ${LONG_OPTIONS} --name=${COMMAND} --options ${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: container ${COMMAND} -n|--name NAME [-- COMMAND|\"COMMANDS\"]" >&2
+ exit 1
+}
+
+Parameters "${@}"
+
+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 -F= '/^State=/ { print $2 }')"
+
+case "${STATE}" in
+ running)
+ ;;
+
+ *)
+ echo "'${NAME}': container is not running" >&2
+ exit 1
+ ;;
+esac
+
+LEADER="$(machinectl status ${NAME} | awk '/Leader: / { print $2 }')"
+COMMANDS="$(echo ${@} | sed -e 's|.*-- ||')"
+
+# Run
+nsenter --target ${LEADER} --mount --uts --ipc --net --pid --root --wd=/root ${COMMANDS}