amicontained

Container introspection tool. Find out what container runtime is being used as well as features available.

Table of Contents

• Installation
  • Binaries
  • Via Go
• Usage
• Examples
  • docker
  • lxc
  • systemd-nspawn
  • rkt
  • unshare

Installation

Binaries

For installation instructions from binaries please visit the Releases Page.

Via Go

$ go get github.com/genuinetools/amicontained

Usage

$ amicontained -h
amicontained -  A container introspection tool.

Usage: amicontained <command>

Flags:

  -d  enable debug logging (default: false)

Commands:

  version  Show the version information.

Examples

docker

$ docker run --rm -it r.j3ss.co/amicontained
Container Runtime: docker
Has Namespaces:
        pid: true
        user: true
User Namespace Mappings:
	Container -> 0
	Host -> 886432
	Range -> 65536
AppArmor Profile: docker-default (enforce)
Capabilities:
	BOUNDING -> chown dac_override fowner fsetid kill setgid setuid setpcap net_bind_service net_raw sys_chroot mknod audit_write setfcap
Seccomp: filtering
Blocked Syscalls (57):
    MSGRCV PTRACE SYSLOG SETPGID SETSID USELIB USTAT SYSFS VHANGUP PIVOT_ROOT _SYSCTL ACCT SETTIMEOFDAY MOUNT UMOUNT2 SWAPON SWAPOFF REBOOT SETHOSTNAME SETDOMAINNAME IOPL IOPERM CREATE_MODULE INIT_MODULE DELETE_MODULE GET_KERNEL_SYMS QUERY_MODULE QUOTACTL NFSSERVCTL GETPMSG PUTPMSG AFS_SYSCALL TUXCALL SECURITY LOOKUP_DCOOKIE CLOCK_SETTIME VSERVER MBIND SET_MEMPOLICY GET_MEMPOLICY KEXEC_LOAD ADD_KEY REQUEST_KEY KEYCTL MIGRATE_PAGES UNSHARE MOVE_PAGES PERF_EVENT_OPEN FANOTIFY_INIT NAME_TO_HANDLE_AT OPEN_BY_HANDLE_AT CLOCK_ADJTIME SETNS PROCESS_VM_READV PROCESS_VM_WRITEV KCMP FINIT_MODULE

$ docker run --rm -it --pid host r.j3ss.co/amicontained
Container Runtime: docker
Has Namespaces:
        pid: false
        user: false
AppArmor Profile: docker-default (enforce)
Capabilities:
	BOUNDING -> chown dac_override fowner fsetid kill setgid setuid setpcap net_bind_service net_raw sys_chroot mknod audit_write setfcap
Seccomp: filtering
Blocked Syscalls (57):
    MSGRCV PTRACE SYSLOG SETPGID SETSID USELIB USTAT SYSFS VHANGUP PIVOT_ROOT _SYSCTL ACCT SETTIMEOFDAY MOUNT UMOUNT2 SWAPON SWAPOFF REBOOT SETHOSTNAME SETDOMAINNAME IOPL IOPERM CREATE_MODULE INIT_MODULE DELETE_MODULE GET_KERNEL_SYMS QUERY_MODULE QUOTACTL NFSSERVCTL GETPMSG PUTPMSG AFS_SYSCALL TUXCALL SECURITY LOOKUP_DCOOKIE CLOCK_SETTIME VSERVER MBIND SET_MEMPOLICY GET_MEMPOLICY KEXEC_LOAD ADD_KEY REQUEST_KEY KEYCTL MIGRATE_PAGES UNSHARE MOVE_PAGES PERF_EVENT_OPEN FANOTIFY_INIT NAME_TO_HANDLE_AT OPEN_BY_HANDLE_AT CLOCK_ADJTIME SETNS PROCESS_VM_READV PROCESS_VM_WRITEV KCMP FINIT_MODULE

$ docker run --rm -it --security-opt "apparmor=unconfined" r.j3ss.co/amicontained
Container Runtime: docker
Has Namespaces:
        pid: true
        user: false
AppArmor Profile: unconfined
Capabilities:
	BOUNDING -> chown dac_override fowner fsetid kill setgid setuid setpcap net_bind_service net_raw sys_chroot mknod audit_write setfcap
Seccomp: filtering
Blocked Syscalls (57):
    MSGRCV PTRACE SYSLOG SETPGID SETSID USELIB USTAT SYSFS VHANGUP PIVOT_ROOT _SYSCTL ACCT SETTIMEOFDAY MOUNT UMOUNT2 SWAPON SWAPOFF REBOOT SETHOSTNAME SETDOMAINNAME IOPL IOPERM CREATE_MODULE INIT_MODULE DELETE_MODULE GET_KERNEL_SYMS QUERY_MODULE QUOTACTL NFSSERVCTL GETPMSG PUTPMSG AFS_SYSCALL TUXCALL SECURITY LOOKUP_DCOOKIE CLOCK_SETTIME VSERVER MBIND SET_MEMPOLICY GET_MEMPOLICY KEXEC_LOAD ADD_KEY REQUEST_KEY KEYCTL MIGRATE_PAGES UNSHARE MOVE_PAGES PERF_EVENT_OPEN FANOTIFY_INIT NAME_TO_HANDLE_AT OPEN_BY_HANDLE_AT CLOCK_ADJTIME SETNS PROCESS_VM_READV PROCESS_VM_WRITEV KCMP FINIT_MODULE

lxc

$ lxc-attach -n xenial
root@xenial:/# amicontained
Container Runtime: lxc
Has Namespaces:
        pid: true
        user: true
User Namespace Mappings:
	Container -> 0	Host -> 100000	Range -> 65536
AppArmor Profile: none
Capabilities:
	BOUNDING -> chown dac_override dac_read_search fowner fsetid kill setgid setuid setpcap linux_immutable net_bind_service net_broadcast net_admin net_raw ipc_lock ipc_owner sys_chroot sys_ptrace sys_pacct sys_admin sys_boot sys_nice sys_resource sys_tty_config mknod lease audit_write audit_control setfcap syslog wake_alarm block_suspend audit_read

$ lxc-execute -n xenial -- /bin/amicontained
Container Runtime: lxc
Has Namespaces:
        pid: true
        user: true
User Namespace Mappings:
	Container -> 0	Host -> 100000	Range -> 65536
AppArmor Profile: none
Capabilities:
	BOUNDING -> chown dac_override dac_read_search fowner fsetid kill setgid setuid setpcap linux_immutable net_bind_service net_broadcast net_admin net_raw ipc_lock ipc_owner sys_chroot sys_ptrace sys_pacct sys_admin sys_boot sys_nice sys_resource sys_tty_config mknod lease audit_write audit_control setfcap syslog wake_alarm block_suspend audit_read

systemd-nspawn

$ sudo systemd-nspawn --machine amicontained --directory nspawn-amicontained /usr/bin/amicontained
Spawning container amicontained on /home/genuinetools/nspawn-amicontained.
Press ^] three times within 1s to kill container.
Timezone UTC does not exist in container, not updating container timezone.
Container Runtime: systemd-nspawn
Has Namespaces:
        pid: true
        user: false
AppArmor Profile: none
Capabilities:
	BOUNDING -> chown dac_override dac_read_search fowner fsetid kill setgid setuid setpcap linux_immutable net_bind_service net_broadcast net_raw ipc_owner sys_chroot sys_ptrace sys_admin sys_boot sys_nice sys_resource sys_tty_config mknod lease audit_write audit_control setfcap
Container amicontained exited successfully.

rkt

$ sudo rkt --insecure-options=image run docker://r.j3ss.co/amicontained
[  631.522121] amicontained[5]: Container Runtime: rkt
[  631.522471] amicontained[5]: Host PID Namespace: false
[  631.522617] amicontained[5]: AppArmor Profile: none
[  631.522768] amicontained[5]: User Namespace: false
[  631.522922] amicontained[5]: Capabilities:
[  631.523075] amicontained[5]: 	BOUNDING -> chown dac_override fowner fsetid kill setgid setuid setpcap net_bind_service net_raw sys_chroot mknod audit_write setfcap

$ sudo rkt --insecure-options=image run  --private-users=true --no-overlay docker://r.j3ss.co/amicontained
[  785.547050] amicontained[5]: Container Runtime: rkt
[  785.547360] amicontained[5]: Host PID Namespace: false
[  785.547567] amicontained[5]: AppArmor Profile: none
[  785.547717] amicontained[5]: User Namespace: true
[  785.547856] amicontained[5]: User Namespace Mappings:
[  785.548064] amicontained[5]: 	Container -> 0	Host -> 229834752	Range -> 65536
[  785.548335] amicontained[5]: Capabilities:
[  785.548537] amicontained[5]: 	BOUNDING -> chown dac_override fowner fsetid kill setgid setuid setpcap net_bind_service net_raw sys_chroot mknod audit_write setfcap

unshare

$ sudo unshare --user -r
root@coreos:/home/jessie/.go/src/github.com/genuinetools/amicontained# ./amicontained
Container Runtime: not-found
Has Namespaces:
        pid: false
        user: true
User Namespace Mappings:
	Container -> 0
	Host -> 0
	Range -> 1
AppArmor Profile: unconfined
Capabilities:
	BOUNDING -> chown dac_override dac_read_search fowner fsetid kill setgid setuid setpcap linux_immutable net_bind_service net_broadcast net_admin net_raw ipc_lock ipc_owner sys_module sys_rawio sys_chroot sys_ptrace sys_pacct sys_admin sys_boot sys_nice sys_resource sys_time sys_tty_config mknod lease audit_write audit_control setfcap mac_override mac_admin syslog wake_alarm block_suspend audit_read