runc

runc

1、runc 连接

​​~]# !501rpm -qf /usr/bin/runccontainerd.io-1.6.6-3.1.el7.x86_64[root@node01 ~]# !502rpm -ql containerd.io/etc/containerd/etc/containerd/config.toml/usr/bin/containerd/usr/bin/containerd-shim/usr/bin/containerd-shim-runc-v1/usr/bin/containerd-shim-runc-v2/usr/bin/ctr/usr/bin/runc/usr/lib/systemd/system/containerd.service/usr/share/doc/containerd.io-1.6.6/usr/share/doc/containerd.io-1.6.6/README.md/usr/share/licenses/containerd.io-1.6.6/usr/share/licenses/containerd.io-1.6.6/LICENSE/usr/share/man/man5/containerd-config.toml.5/usr/share/man/man8/containerd-config.8/usr/share/man/man8/containerd.8/usr/share/man/man8/ctr.8

2、运行runc

runc 是容器的运行态，不包含镜像管理，直接使用，需要构建镜像

oci 是容器运行时的工业标准：运行时标准 runtime-spec ； 容器镜像标准 image-spec ;

docker run -dit --name busybox busybox docker export c1 >busybox.tarmkdir ~/rootfstar xf busybox.tar -c rootfs run spec runc create c1 runc delete c1 runc list[root@node01 ~]# runc create c1 [root@node01 ~]# runc list ID PID STATUS BUNDLE CREATED OWNERc1 4323 created /root 2022-08-14T09:19:48.132364283Z root[root@node01 ~]# runc state c1 { "ociVersion": "1.0.2-dev", "id": "c1", "pid": 4323, "status": "created", "bundle": "/root", "rootfs": "/root/rootfs", "created": "2022-08-14T09:19:48.132364283Z", "owner": ""}[root@node01 ~]# runc pause c1 [root@node01 ~]# runc resume c1 [root@node01 ~]# runc events c1 { "type": "stats", "id": "c1", "data": { "cpu": { "usage": { "total": 14002365, "percpu": [14002365], "kernel": 0, "user": 0 }, "throttling": {} }, "cpuset": { "cpus": [0], "cpu_exclusive": 0, "mems": [0], "mem_hardwall": 0, "mem_exclusive": 0, "memory_migrate": 0, "memory_spread_page": 0, "memory_spread_slab": 0, "memory_pressure": 0, "sched_load_balance": 1, "sched_relax_domain_level": -1 }, "memory": { "usage": { "limit": 9223372036854771712, "usage": 10199040, "max": 10211328, "failcnt": 0 }, "swap": { "limit": 9223372036854771712, "usage": 10199040, "max": 10211328, "failcnt": 0 }, "kernel": { "limit": 9223372036854771712, "failcnt": 0 }, "kernelTCP": { "limit": 9223372036854771712, "failcnt": 0 }, "raw": { "active_anon": 10199040, "active_file": 0, "cache": 0, "hierarchical_memory_limit": 9223372036854771712, "hierarchical_memsw_limit": 9223372036854771712, "inactive_anon": 0, "inactive_file": 0, "mapped_file": 0, "pgfault": 1678, "pgmajfault": 0, "pgpgin": 478, "pgpgout": 32, "rss": 10199040, "rss_huge": 8388608, "swap": 0, "total_active_anon": 10199040, "total_active_file": 0, "total_cache": 0, "total_inactive_anon": 0, "total_inactive_file": 0, "total_mapped_file": 0, "total_pgfault": 1678, "total_pgmajfault": 0, "total_pgpgin": 478, "total_pgpgout": 32, "total_rss": 10199040, "total_rss_huge": 8388608, "total_swap": 0, "total_unevictable": 0, "unevictable": 0 } }, "pids": { "current": 4 }, "blkio": {}, "hugetlb": { "1GB": { "failcnt": 0 }, "2MB": { "failcnt": 0 } }, "intel_rdt": {}, "network_interfaces": null }}

附件：

conf.json

[root@node01 ~]# cat config.json { "ociVersion": "1.0.2-dev", "process": { "terminal": false, "user": { "uid": 0, "gid": 0 }, "args": [ "sh" ], "env": [ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", "TERM=xterm" ], "cwd": "/", "capabilities": { "bounding": [ "CAP_AUDIT_WRITE", "CAP_KILL", "CAP_NET_BIND_SERVICE" ], "effective": [ "CAP_AUDIT_WRITE", "CAP_KILL", "CAP_NET_BIND_SERVICE" ], "permitted": [ "CAP_AUDIT_WRITE", "CAP_KILL", "CAP_NET_BIND_SERVICE" ], "ambient": [ "CAP_AUDIT_WRITE", "CAP_KILL", "CAP_NET_BIND_SERVICE" ] }, "rlimits": [ { "type": "RLIMIT_NOFILE", "hard": 1024, "soft": 1024 } ], "noNewPrivileges": true }, "root": { "path": "rootfs", "readonly": true }, "hostname": "runc", "mounts": [ { "destination": "/proc", "type": "proc", "source": "proc" }, { "destination": "/dev", "type": "tmpfs", "source": "tmpfs", "options": [ "nosuid", "strictatime", "mode=755", "size=65536k" ] }, { "destination": "/dev/pts", "type": "devpts", "source": "devpts", "options": [ "nosuid", "noexec", "newinstance", "ptmxmode=0666", "mode=0620", "gid=5" ] }, { "destination": "/dev/shm", "type": "tmpfs", "source": "shm", "options": [ "nosuid", "noexec", "nodev", "mode=1777", "size=65536k" ] }, { "destination": "/dev/mqueue", "type": "mqueue", "source": "mqueue", "options": [ "nosuid", "noexec", "nodev" ] }, { "destination": "/sys", "type": "sysfs", "source": "sysfs", "options": [ "nosuid", "noexec", "nodev", "ro" ] }, { "destination": "/sys/fs/cgroup", "type": "cgroup", "source": "cgroup", "options": [ "nosuid", "noexec", "nodev", "relatime", "ro" ] } ], "linux": { "resources": { "devices": [ { "allow": false, "access": "rwm" } ] }, "namespaces": [ { "type": "pid" }, { "type": "network" }, { "type": "ipc" }, { "type": "uts" }, { "type": "mount" } ], "maskedPaths": [ "/proc/acpi", "/proc/asound", "/proc/kcore", "/proc/keys", "/proc/latency_stats", "/proc/timer_list", "/proc/timer_stats", "/proc/sched_debug", "/sys/firmware", "/proc/scsi" ], "readonlyPaths": [ "/proc/bus", "/proc/fs", "/proc/irq", "/proc/sys", "/proc/sysrq-trigger" ] }}

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