From 37d69942245fa2c9ba5f9fb50a1d24a01ceb33ee Mon Sep 17 00:00:00 2001 From: Smruti Soumitra Khuntia Date: Wed, 12 Sep 2018 21:30:57 +0530 Subject: [PATCH] Delivery of default seccomp Profile on each Host on site deployment - A new schema for a Deckhand document that contains a Seccomp default profile. - A Seccomp profile that creates the default seccomp profile file at defined seccomp profile root. - A bootaction that puts the default seccomp profile in place. - Modified Kubelet config to support seccomp profile root dir's path. Change-Id: I83fb3cab11cec5ddf3bceefbc0cb1c7222ae06f4 --- .../bootactions/seccomp-profiles.yaml | 31 + global/profiles/security/seccomp_default.yaml | 787 ++++++++++++++++++ global/schemas/pegleg/SeccompProfile/v1.yaml | 19 + global/software/config/Kubelet.yaml | 8 + 4 files changed, 845 insertions(+) create mode 100644 global/baremetal/bootactions/seccomp-profiles.yaml create mode 100644 global/profiles/security/seccomp_default.yaml create mode 100644 global/schemas/pegleg/SeccompProfile/v1.yaml diff --git a/global/baremetal/bootactions/seccomp-profiles.yaml b/global/baremetal/bootactions/seccomp-profiles.yaml new file mode 100644 index 000000000..70bd78156 --- /dev/null +++ b/global/baremetal/bootactions/seccomp-profiles.yaml @@ -0,0 +1,31 @@ +--- +schema: 'drydock/BootAction/v1' +metadata: + schema: 'metadata/Document/v1' + name: seccomp-profiles + storagePolicy: 'cleartext' + layeringDefinition: + abstract: false + layer: global + substitutions: + - src: + schema: pegleg/SeccompProfile/v1 + name: seccomp-default + path: .savePath + dest: + path: .assets[0].path + - src: + schema: pegleg/SeccompProfile/v1 + name: seccomp-default + path: .content + dest: + path: .assets[0].data + +data: + signaling: false + assets: + - type: file + permissions: '600' + data_pipeline: + - utf8_decode +... diff --git a/global/profiles/security/seccomp_default.yaml b/global/profiles/security/seccomp_default.yaml new file mode 100644 index 000000000..2ff6a7fd8 --- /dev/null +++ b/global/profiles/security/seccomp_default.yaml @@ -0,0 +1,787 @@ +--- +# The data content of this file is referred from the Moby project as +# mentioned in the link below: +# https://github.com/moby/moby/blob/master/profiles/seccomp/default.json +schema: 'pegleg/SeccompProfile/v1' +metadata: + schema: 'metadata/Document/v1' + name: seccomp-default + storagePolicy: 'cleartext' + layeringDefinition: + abstract: false + layer: global +data: + # Path for seccomp profile root directory. + seccompDirPath: /var/lib/kubelet/seccomp + # Path to save seccomp profile as file. + # This should be same as seccompDirPath with file name. + savePath: /var/lib/kubelet/seccomp/seccomp_default + # Content of default seccomp profile file. + content: | + { + "defaultAction": "SCMP_ACT_ERRNO", + "archMap": [ + { + "architecture": "SCMP_ARCH_X86_64", + "subArchitectures": [ + "SCMP_ARCH_X86", + "SCMP_ARCH_X32" + ] + }, + { + "architecture": "SCMP_ARCH_AARCH64", + "subArchitectures": [ + "SCMP_ARCH_ARM" + ] + }, + { + "architecture": "SCMP_ARCH_MIPS64", + "subArchitectures": [ + "SCMP_ARCH_MIPS", + "SCMP_ARCH_MIPS64N32" + ] + }, + { + "architecture": "SCMP_ARCH_MIPS64N32", + "subArchitectures": [ + "SCMP_ARCH_MIPS", + "SCMP_ARCH_MIPS64" + ] + }, + { + "architecture": "SCMP_ARCH_MIPSEL64", + "subArchitectures": [ + "SCMP_ARCH_MIPSEL", + "SCMP_ARCH_MIPSEL64N32" + ] + }, + { + "architecture": "SCMP_ARCH_MIPSEL64N32", + "subArchitectures": [ + "SCMP_ARCH_MIPSEL", + "SCMP_ARCH_MIPSEL64" + ] + }, + { + "architecture": "SCMP_ARCH_S390X", + "subArchitectures": [ + "SCMP_ARCH_S390" + ] + } + ], + "syscalls": [ + { + "names": [ + "accept", + "accept4", + "access", + "adjtimex", + "alarm", + "bind", + "brk", + "capget", + "capset", + "chdir", + "chmod", + "chown", + "chown32", + "clock_getres", + "clock_gettime", + "clock_nanosleep", + "close", + "connect", + "copy_file_range", + "creat", + "dup", + "dup2", + "dup3", + "epoll_create", + "epoll_create1", + "epoll_ctl", + "epoll_ctl_old", + "epoll_pwait", + "epoll_wait", + "epoll_wait_old", + "eventfd", + "eventfd2", + "execve", + "execveat", + "exit", + "exit_group", + "faccessat", + "fadvise64", + "fadvise64_64", + "fallocate", + "fanotify_mark", + "fchdir", + "fchmod", + "fchmodat", + "fchown", + "fchown32", + "fchownat", + "fcntl", + "fcntl64", + "fdatasync", + "fgetxattr", + "flistxattr", + "flock", + "fork", + "fremovexattr", + "fsetxattr", + "fstat", + "fstat64", + "fstatat64", + "fstatfs", + "fstatfs64", + "fsync", + "ftruncate", + "ftruncate64", + "futex", + "futimesat", + "getcpu", + "getcwd", + "getdents", + "getdents64", + "getegid", + "getegid32", + "geteuid", + "geteuid32", + "getgid", + "getgid32", + "getgroups", + "getgroups32", + "getitimer", + "getpeername", + "getpgid", + "getpgrp", + "getpid", + "getppid", + "getpriority", + "getrandom", + "getresgid", + "getresgid32", + "getresuid", + "getresuid32", + "getrlimit", + "get_robust_list", + "getrusage", + "getsid", + "getsockname", + "getsockopt", + "get_thread_area", + "gettid", + "gettimeofday", + "getuid", + "getuid32", + "getxattr", + "inotify_add_watch", + "inotify_init", + "inotify_init1", + "inotify_rm_watch", + "io_cancel", + "ioctl", + "io_destroy", + "io_getevents", + "ioprio_get", + "ioprio_set", + "io_setup", + "io_submit", + "ipc", + "kill", + "lchown", + "lchown32", + "lgetxattr", + "link", + "linkat", + "listen", + "listxattr", + "llistxattr", + "_llseek", + "lremovexattr", + "lseek", + "lsetxattr", + "lstat", + "lstat64", + "madvise", + "memfd_create", + "mincore", + "mkdir", + "mkdirat", + "mknod", + "mknodat", + "mlock", + "mlock2", + "mlockall", + "mmap", + "mmap2", + "mprotect", + "mq_getsetattr", + "mq_notify", + "mq_open", + "mq_timedreceive", + "mq_timedsend", + "mq_unlink", + "mremap", + "msgctl", + "msgget", + "msgrcv", + "msgsnd", + "msync", + "munlock", + "munlockall", + "munmap", + "nanosleep", + "newfstatat", + "_newselect", + "open", + "openat", + "pause", + "pipe", + "pipe2", + "poll", + "ppoll", + "prctl", + "pread64", + "preadv", + "preadv2", + "prlimit64", + "pselect6", + "pwrite64", + "pwritev", + "pwritev2", + "read", + "readahead", + "readlink", + "readlinkat", + "readv", + "recv", + "recvfrom", + "recvmmsg", + "recvmsg", + "remap_file_pages", + "removexattr", + "rename", + "renameat", + "renameat2", + "restart_syscall", + "rmdir", + "rt_sigaction", + "rt_sigpending", + "rt_sigprocmask", + "rt_sigqueueinfo", + "rt_sigreturn", + "rt_sigsuspend", + "rt_sigtimedwait", + "rt_tgsigqueueinfo", + "sched_getaffinity", + "sched_getattr", + "sched_getparam", + "sched_get_priority_max", + "sched_get_priority_min", + "sched_getscheduler", + "sched_rr_get_interval", + "sched_setaffinity", + "sched_setattr", + "sched_setparam", + "sched_setscheduler", + "sched_yield", + "seccomp", + "select", + "semctl", + "semget", + "semop", + "semtimedop", + "send", + "sendfile", + "sendfile64", + "sendmmsg", + "sendmsg", + "sendto", + "setfsgid", + "setfsgid32", + "setfsuid", + "setfsuid32", + "setgid", + "setgid32", + "setgroups", + "setgroups32", + "setitimer", + "setpgid", + "setpriority", + "setregid", + "setregid32", + "setresgid", + "setresgid32", + "setresuid", + "setresuid32", + "setreuid", + "setreuid32", + "setrlimit", + "set_robust_list", + "setsid", + "setsockopt", + "set_thread_area", + "set_tid_address", + "setuid", + "setuid32", + "setxattr", + "shmat", + "shmctl", + "shmdt", + "shmget", + "shutdown", + "sigaltstack", + "signalfd", + "signalfd4", + "sigreturn", + "socket", + "socketcall", + "socketpair", + "splice", + "stat", + "stat64", + "statfs", + "statfs64", + "statx", + "symlink", + "symlinkat", + "sync", + "sync_file_range", + "syncfs", + "sysinfo", + "syslog", + "tee", + "tgkill", + "time", + "timer_create", + "timer_delete", + "timerfd_create", + "timerfd_gettime", + "timerfd_settime", + "timer_getoverrun", + "timer_gettime", + "timer_settime", + "times", + "tkill", + "truncate", + "truncate64", + "ugetrlimit", + "umask", + "uname", + "unlink", + "unlinkat", + "utime", + "utimensat", + "utimes", + "vfork", + "vmsplice", + "wait4", + "waitid", + "waitpid", + "write", + "writev" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": {}, + "excludes": {} + }, + { + "names": [ + "personality" + ], + "action": "SCMP_ACT_ALLOW", + "args": [ + { + "index": 0, + "value": 0, + "valueTwo": 0, + "op": "SCMP_CMP_EQ" + } + ], + "comment": "", + "includes": {}, + "excludes": {} + }, + { + "names": [ + "personality" + ], + "action": "SCMP_ACT_ALLOW", + "args": [ + { + "index": 0, + "value": 8, + "valueTwo": 0, + "op": "SCMP_CMP_EQ" + } + ], + "comment": "", + "includes": {}, + "excludes": {} + }, + { + "names": [ + "personality" + ], + "action": "SCMP_ACT_ALLOW", + "args": [ + { + "index": 0, + "value": 131072, + "valueTwo": 0, + "op": "SCMP_CMP_EQ" + } + ], + "comment": "", + "includes": {}, + "excludes": {} + }, + { + "names": [ + "personality" + ], + "action": "SCMP_ACT_ALLOW", + "args": [ + { + "index": 0, + "value": 131080, + "valueTwo": 0, + "op": "SCMP_CMP_EQ" + } + ], + "comment": "", + "includes": {}, + "excludes": {} + }, + { + "names": [ + "personality" + ], + "action": "SCMP_ACT_ALLOW", + "args": [ + { + "index": 0, + "value": 4294967295, + "valueTwo": 0, + "op": "SCMP_CMP_EQ" + } + ], + "comment": "", + "includes": {}, + "excludes": {} + }, + { + "names": [ + "sync_file_range2" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "arches": [ + "ppc64le" + ] + }, + "excludes": {} + }, + { + "names": [ + "arm_fadvise64_64", + "arm_sync_file_range", + "sync_file_range2", + "breakpoint", + "cacheflush", + "set_tls" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "arches": [ + "arm", + "arm64" + ] + }, + "excludes": {} + }, + { + "names": [ + "arch_prctl" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "arches": [ + "amd64", + "x32" + ] + }, + "excludes": {} + }, + { + "names": [ + "modify_ldt" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "arches": [ + "amd64", + "x32", + "x86" + ] + }, + "excludes": {} + }, + { + "names": [ + "s390_pci_mmio_read", + "s390_pci_mmio_write", + "s390_runtime_instr" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "arches": [ + "s390", + "s390x" + ] + }, + "excludes": {} + }, + { + "names": [ + "open_by_handle_at" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "caps": [ + "CAP_DAC_READ_SEARCH" + ] + }, + "excludes": {} + }, + { + "names": [ + "bpf", + "clone", + "fanotify_init", + "lookup_dcookie", + "mount", + "name_to_handle_at", + "perf_event_open", + "quotactl", + "setdomainname", + "sethostname", + "setns", + "umount", + "umount2", + "unshare" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "caps": [ + "CAP_SYS_ADMIN" + ] + }, + "excludes": {} + }, + { + "names": [ + "clone" + ], + "action": "SCMP_ACT_ALLOW", + "args": [ + { + "index": 0, + "value": 2080505856, + "valueTwo": 0, + "op": "SCMP_CMP_MASKED_EQ" + } + ], + "comment": "", + "includes": {}, + "excludes": { + "caps": [ + "CAP_SYS_ADMIN" + ], + "arches": [ + "s390", + "s390x" + ] + } + }, + { + "names": [ + "clone" + ], + "action": "SCMP_ACT_ALLOW", + "args": [ + { + "index": 1, + "value": 2080505856, + "valueTwo": 0, + "op": "SCMP_CMP_MASKED_EQ" + } + ], + "comment": "s390 parameter ordering for clone is different", + "includes": { + "arches": [ + "s390", + "s390x" + ] + }, + "excludes": { + "caps": [ + "CAP_SYS_ADMIN" + ] + } + }, + { + "names": [ + "reboot" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "caps": [ + "CAP_SYS_BOOT" + ] + }, + "excludes": {} + }, + { + "names": [ + "chroot" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "caps": [ + "CAP_SYS_CHROOT" + ] + }, + "excludes": {} + }, + { + "names": [ + "delete_module", + "init_module", + "finit_module", + "query_module" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "caps": [ + "CAP_SYS_MODULE" + ] + }, + "excludes": {} + }, + { + "names": [ + "acct" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "caps": [ + "CAP_SYS_PACCT" + ] + }, + "excludes": {} + }, + { + "names": [ + "kcmp", + "process_vm_readv", + "process_vm_writev", + "ptrace" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "caps": [ + "CAP_SYS_PTRACE" + ] + }, + "excludes": {} + }, + { + "names": [ + "iopl", + "ioperm" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "caps": [ + "CAP_SYS_RAWIO" + ] + }, + "excludes": {} + }, + { + "names": [ + "settimeofday", + "stime", + "clock_settime" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "caps": [ + "CAP_SYS_TIME" + ] + }, + "excludes": {} + }, + { + "names": [ + "vhangup" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "caps": [ + "CAP_SYS_TTY_CONFIG" + ] + }, + "excludes": {} + }, + { + "names": [ + "get_mempolicy", + "mbind", + "set_mempolicy" + ], + "action": "SCMP_ACT_ALLOW", + "args": [], + "comment": "", + "includes": { + "caps": [ + "CAP_SYS_NICE" + ] + }, + "excludes": {} + } + ] + } \ No newline at end of file diff --git a/global/schemas/pegleg/SeccompProfile/v1.yaml b/global/schemas/pegleg/SeccompProfile/v1.yaml new file mode 100644 index 000000000..a2bd8c9ab --- /dev/null +++ b/global/schemas/pegleg/SeccompProfile/v1.yaml @@ -0,0 +1,19 @@ +--- +schema: 'deckhand/DataSchema/v1' +metadata: + schema: metadata/Control/v1 + name: pegleg/SeccompProfile/v1 + labels: + application: pegleg +data: + $schema: 'http://json-schema.org/schema#' + type: 'object' + additionalProperties: false + properties: + seccompDirPath: + type: 'string' + savePath: + type: 'string' + content: + type: 'string' + required: ['seccompDirPath', 'savePath', 'content'] diff --git a/global/software/config/Kubelet.yaml b/global/software/config/Kubelet.yaml index 245e35127..db471cbe9 100644 --- a/global/software/config/Kubelet.yaml +++ b/global/software/config/Kubelet.yaml @@ -14,6 +14,13 @@ metadata: path: .images.kubernetes.pause dest: path: .images.pause + - src: + schema: pegleg/SeccompProfile/v1 + name: seccomp-default + path: .seccompDirPath + dest: + path: .arguments[7] + pattern: SECCOMP_PROFILE_ROOT data: arguments: - --cni-bin-dir=/opt/cni/bin @@ -23,3 +30,4 @@ data: - --node-status-update-frequency=5s - --max-pods=200 - --pods-per-core=10 + - --seccomp-profile-root=SECCOMP_PROFILE_ROOT