...
코드 블럭 | ||||
---|---|---|---|---|
| ||||
# virsh list --all
Id Name State
-----------------------------------------------
14 gita.kreonet.net running
...
# ps auxf
USER PID %CPU %MEM START TIME COMMAND
qemu 177798 0.5 0.3 Apr21 594:54 /usr/libexec/qemu-kvm
-name guest=gita.kreonet.net
-smp 4,maxcpus=16 # CPU
-m size=8GB,maxmem=32GB # MEM
-blockdev {"filename":"/mnt/192.168...:_nfs_.../...a0892.qcow2",...} # DISK
... |
...
코드 블럭 | ||||
---|---|---|---|---|
| ||||
# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS ... 772a8e8fcd80 nextcloud/aio-fulltextsearch:latest "/bin/tini -- /usr/l…" 2 months ago Up 5 weeks (healthy) ... 249b437e6556 nextcloud/aio-apache:latest "start.sh /usr/bin/s…" 2 months ago Up 5 weeks (healthy) ... 4ce5464fd846 nextcloud/aio-postgresql:latest "start.sh" 2 months ago Up 5 weeks (healthy) ... ... # ps auxf USER PID %CPU %MEM START TIME COMMAND root 1328 0.0 0.1 May23 13:20 /usr/bin/containerd-shim-runc-v2 -namespace moby -id 772a8e8f772a8e8fcd80... root 1460 0.0 0.0 May23 0:51 \_ /bin/tini -- /usr/local/bin/docker-entrypoint.sh eswrapper ubuntu 1862 0.1 17.5 May23 63:39 \_ /usr/share/elasticsearch/jdk/bin/java ... ubuntu 2551 0.0 0.0 May23 0:00 \_ /usr/share/elasticsearch/modules/... root 1475 0.0 0.1 May23 12:48 /usr/bin/containerd-shim-runc-v2 -namespace moby -id 249b437e249b437e6556... www-data 1568 0.0 0.3 May23 4:12 \_ /usr/bin/python3 /usr/bin/supervisord -c /supervisord.conf www-data 3426 0.0 0.0 May23 0:00 \_ /bin/sh /usr/local/apache2/bin/apachectl -DFOREGROUND www-data 3431 0.0 0.0 May23 1:12 \_ /usr/local/apache2/bin/httpd -DFOREGROUND www-data 5540 0.0 0.0 May23 0:48 \_ /usr/local/apache2/bin/httpd -DFOREGROUND root 1587 0.0 0.1 May23 12:16 /usr/bin/containerd-shim-runc-v2 -namespace moby -id 4ce5464f4ce5464fd846... lxd 1666 0.0 0.0 May23 0:00 \_ /bin/bash /usr/bin/start.sh lxd 1998 0.0 0.2 May23 2:32 \_ postgres |
...
여러대의 가상머신 또는 컨테이너를 관리하는 기술
한대 | 여러대, 오케스트레이터 | 비고 | |
---|---|---|---|
컨테이너 | 도커, LXC, Podman | 쿠버네티스 | |
가상머신 | cockpit-machine | 오픈스택, oVirt | 모두 QEMU-KVM, LibVirt 이용 |
스토리지, 볼륨
오픈스택, 쿠버네티스 모두 설정하기 쉬운 건 NFSstorage backend 는 NFS 임
/mnt/md1/k8s_shared
/mnt/md1/o7k_shared