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Chidule chachidule ndikukhazikitsa Kata Containers

Chidule chachidule ndikukhazikitsa Kata Containers
Nkhaniyi ifotokoza mmene imagwirira ntchito Kata Containers, ndipo padzakhalanso gawo lothandiza ndi kulumikizana kwawo ndi Docker.

Zazovuta zomwe zimachitika ndi Docker ndi mayankho awo kale zinalembedwa, lero ndikufotokozera mwachidule za kukhazikitsidwa kwa Kata Containers. Kata Containers ndi nthawi yotetezeka ya chidebe chotengera makina opepuka opepuka. Kugwira nawo ntchito ndizofanana ndi zotengera zina, koma kuwonjezera apo pali kudzipatula kodalirika pogwiritsa ntchito ukadaulo waukadaulo wa hardware. Ntchitoyi idayamba mu 2017, pomwe anthu okhala ndi dzina lomwelo adamaliza kuphatikiza malingaliro abwino kwambiri kuchokera ku Intel Clear Containers ndi Hyper.sh RunV, pambuyo pake ntchito idapitilirabe kuthandizira zomangamanga zosiyanasiyana, kuphatikiza AMD64, ARM, IBM p- ndi z. -mndandanda. Kuphatikiza apo, ntchito imathandizidwa mkati mwa hypervisors QEMU, Firecracker, ndipo palinso kuphatikiza ndi zosungidwa. Khodi ikupezeka pa GitHub pansi pa layisensi ya MIT.

Zofunikira zazikulu

  • Kugwira ntchito ndi gawo losiyana, popereka maukonde, kukumbukira ndi kudzipatula kwa I / O, ndizotheka kukakamiza kugwiritsa ntchito kudzipatula kwa hardware kutengera zowonjezera zowonjezera.
  • Thandizo pamiyezo yamakampani kuphatikiza OCI (mtundu wa container), Kubernetes CRI
  • Kuchita kosasinthasintha kwa zotengera za Linux nthawi zonse, kudzipatula kwachulukidwe popanda kupitilira kwa ma VM wamba
  • Chotsani kufunikira koyendetsa zotengera mkati mwa makina athunthu, ma generic interfaces amathandizira kuphatikiza ndikuyambitsa

kolowera

pali ambiri zosankha zoyika, ndilingalira kukhazikitsa kuchokera kumalo osungira, kutengera makina opangira a Centos 7.
chofunika: Ntchito ya Kata Containers imathandizidwa pa Hardware, kutumiza kwa virtualization sikumagwiranso ntchito nthawi zonse amafunikira thandizo la sse4.1 kuchokera ku purosesa.

Kuyika Kata Containers ndikosavuta:

Ikani zida zogwirira ntchito ndi nkhokwe:

# yum -y install yum-utils

Zimitsani Selinux (ndizolondola kukonza, koma kuti zikhale zosavuta ndikuzimitsa):

# setenforce 0
# sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config

Timalumikiza chosungira ndikuchita unsembe

# source /etc/os-release
# ARCH=$(arch)
# BRANCH="${BRANCH:-stable-1.10}"
# yum-config-manager --add-repo "http://download.opensuse.org/repositories/home:/katacontainers:/releases:/${ARCH}:/${BRANCH}/CentOS_${VERSION_ID}/home:katacontainers:releases:${ARCH}:${BRANCH}.repo"
# yum -y install kata-runtime kata-proxy kata-shim

kusintha

Ndikukonzekera kugwira ntchito ndi docker, kukhazikitsa kwake ndikofanana, sindifotokoza mwatsatanetsatane:

# rpm -qa | grep docker
docker-ce-cli-19.03.6-3.el7.x86_64
docker-ce-19.03.6-3.el7.x86_64
# docker -v
Docker version 19.03.6, build 369ce74a3c

Timasintha daemon.json:

# cat <<EOF > /etc/docker/daemon.json
{
  "default-runtime": "kata-runtime",
  "runtimes": {
    "kata-runtime": {
      "path": "/usr/bin/kata-runtime"
    }
  }
}
EOF

Yambitsaninso docker:

# service docker restart

Mayeso Ogwira Ntchito

Mukayambitsa chidebecho musanayambitsenso docker, mutha kuwona kuti uname ipereka mtundu wa kernel womwe ukuyenda pamakina akulu:

# docker run busybox uname -a
Linux 19efd7188d06 3.10.0-1062.12.1.el7.x86_64 #1 SMP Tue Feb 4 23:02:59 UTC 2020 x86_64 GNU/Linux

Pambuyo poyambitsanso, mtundu wa kernel umawoneka motere:

# docker run busybox uname -a
Linux 9dd1f30fe9d4 4.19.86-5.container #1 SMP Sat Feb 22 01:53:14 UTC 2020 x86_64 GNU/Linux

Magulu ambiri!

# time docker run busybox mount
kataShared on / type 9p (rw,dirsync,nodev,relatime,mmap,access=client,trans=virtio)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev type tmpfs (rw,nosuid,size=65536k,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666)
sysfs on /sys type sysfs (ro,nosuid,nodev,noexec,relatime)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,relatime,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (ro,nosuid,nodev,noexec,relatime,xattr,name=systemd)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (ro,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/blkio type cgroup (ro,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/memory type cgroup (ro,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/devices type cgroup (ro,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/perf_event type cgroup (ro,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (ro,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/freezer type cgroup (ro,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/pids type cgroup (ro,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/cpuset type cgroup (ro,nosuid,nodev,noexec,relatime,cpuset)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
shm on /dev/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=65536k)
kataShared on /etc/resolv.conf type 9p (rw,dirsync,nodev,relatime,mmap,access=client,trans=virtio)
kataShared on /etc/hostname type 9p (rw,dirsync,nodev,relatime,mmap,access=client,trans=virtio)
kataShared on /etc/hosts type 9p (rw,dirsync,nodev,relatime,mmap,access=client,trans=virtio)
proc on /proc/bus type proc (ro,relatime)
proc on /proc/fs type proc (ro,relatime)
proc on /proc/irq type proc (ro,relatime)
proc on /proc/sys type proc (ro,relatime)
tmpfs on /proc/acpi type tmpfs (ro,relatime)
tmpfs on /proc/timer_list type tmpfs (rw,nosuid,size=65536k,mode=755)
tmpfs on /sys/firmware type tmpfs (ro,relatime)

real    0m2.381s
user    0m0.066s
sys 0m0.039s

# time docker run busybox free -m
              total        used        free      shared  buff/cache   available
Mem:           1993          30        1962           0           1        1946
Swap:             0           0           0

real    0m3.297s
user    0m0.086s
sys 0m0.050s

Kuyesa kwachangu

Kuti ndiwone zotayika kuchokera ku virtualization - ndimayendetsa sysbench, monga zitsanzo zazikulu tengani njira iyi.

Kuthamanga sysbench pogwiritsa ntchito Docker + containrd

Mayeso a processor

sysbench 1.0:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 1
Initializing random number generator from current time

Prime numbers limit: 20000

Initializing worker threads...

Threads started!

General statistics:
    total time:                          36.7335s
    total number of events:              10000
    total time taken by event execution: 36.7173s
    response time:
         min:                                  3.43ms
         avg:                                  3.67ms
         max:                                  8.34ms
         approx.  95 percentile:               3.79ms

Threads fairness:
    events (avg/stddev):           10000.0000/0.00
    execution time (avg/stddev):   36.7173/0.00

Kuyesa kwa RAM

sysbench 1.0:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 1
Initializing random number generator from current time

Initializing worker threads...

Threads started!

Operations performed: 104857600 (2172673.64 ops/sec)

102400.00 MiB transferred (2121.75 MiB/sec)

General statistics:
    total time:                          48.2620s
    total number of events:              104857600
    total time taken by event execution: 17.4161s
    response time:
         min:                                  0.00ms
         avg:                                  0.00ms
         max:                                  0.17ms
         approx.  95 percentile:               0.00ms

Threads fairness:
    events (avg/stddev):           104857600.0000/0.00
    execution time (avg/stddev):   17.4161/0.00

Kuthamanga sysbench pogwiritsa ntchito Docker + Kata Containers

Mayeso a processor

sysbench 1.0:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 1
Initializing random number generator from current time

Prime numbers limit: 20000

Initializing worker threads...

Threads started!

General statistics:
    total time:                          36.5747s
    total number of events:              10000
    total time taken by event execution: 36.5594s
    response time:
         min:                                  3.43ms
         avg:                                  3.66ms
         max:                                  4.93ms
         approx.  95 percentile:               3.77ms

Threads fairness:
    events (avg/stddev):           10000.0000/0.00
    execution time (avg/stddev):   36.5594/0.00

Kuyesa kwa RAM

sysbench 1.0:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 1
Initializing random number generator from current time

Initializing worker threads...

Threads started!

Operations performed: 104857600 (2450366.94 ops/sec)

102400.00 MiB transferred (2392.94 MiB/sec)

General statistics:
    total time:                          42.7926s
    total number of events:              104857600
    total time taken by event execution: 16.1512s
    response time:
         min:                                  0.00ms
         avg:                                  0.00ms
         max:                                  0.43ms
         approx.  95 percentile:               0.00ms

Threads fairness:
    events (avg/stddev):           104857600.0000/0.00
    execution time (avg/stddev):   16.1512/0.00

M'malo mwake, zinthu zadziwikiratu, koma ndikwabwino kuyesa mayeso kangapo, kuchotsa zotuluka ndikuwerengera zotsatira, kotero sindimachita mayeso ochulukirapo.

anapezazo

Ngakhale kuti zotengera zotere zimatenga nthawi yayitali kasanu kapena khumi kuti ziyambike (nthawi yothamanga ya malamulo omwewo mukamagwiritsa ntchito zosungidwa ndi zosakwana gawo limodzi mwa magawo atatu a sekondi), zimagwirabe ntchito mwachangu ngati titenga nthawi yoyambira (pamenepo). ndi zitsanzo pamwambapa, malamulo ochitidwa pafupifupi masekondi atatu). Chabwino, zotsatira za kuyesa mwamsanga kwa CPU ndi RAM zimasonyeza zotsatira zofanana, zomwe sizingasangalale, makamaka chifukwa chakuti kudzipatula kumaperekedwa pogwiritsa ntchito makina oyendetsa bwino monga kvm.

Kulengeza

Nkhaniyi ndi ndemanga, koma imakupatsani mwayi womva nthawi yothamanga. Madera ambiri ogwiritsira ntchito sanaphimbidwe, mwachitsanzo, tsambalo likufotokoza kuthekera koyendetsa Kubernetes pamwamba pa Kata Containers. Kuphatikiza apo, mutha kuyesanso mayeso angapo omwe amayang'ana kwambiri kupeza zovuta zachitetezo, zoletsa, ndi zinthu zina zosangalatsa.

Ndikupempha onse amene awerenga ndi kubwereza apa kuti atenge nawo mbali pa kafukufukuyu, zomwe zidzadalira zofalitsa zamtsogolo pa mutuwu.

Ogwiritsa ntchito olembetsedwa okha ndi omwe angatenge nawo gawo pa kafukufukuyu. Lowani muakauntichonde.

Kodi ndipitilize kufalitsa zolemba za Kata Containers?

  • 80,0%Inde, lembani zambiri!28

  • 20,0%Ayi, musatero…7

Ogwiritsa 35 adavota. Ogwiritsa ntchito 7 adakana.

Source: www.habr.com

Kuwonjezera ndemanga