# System Monitoring as a Service Expose several system properties and logs. ## How to run it ``` $ kapow server SystemMonitor ``` ## How to consume it
List files and directories You can see if a file exists or the contents of a directory adding the path after _/file/_. ``` $ curl -s http://localhost:8080/file/var/log/cups total 60 drwxr-xr-x 2 root root 4096 Dec 2 06:54 . drwxr-xr-x 15 root root 4096 Jan 27 07:34 .. -rw-r--r-- 1 root cups 0 Dec 2 06:54 access_log -rw-r--r-- 1 root cups 125 Dec 1 19:12 access_log.1 -rw-r--r-- 1 root cups 254 Nov 23 12:17 access_log.2 -rw-r--r-- 1 root cups 125 Sep 8 14:41 access_log.3 -rw-r--r-- 1 root cups 634 May 1 2019 access_log.4 -rw-r--r-- 1 root cups 0 Sep 9 2018 error_log -rw-r--r-- 1 root cups 17312 Sep 3 2018 error_log.1 -rw-r--r-- 1 root cups 0 Dec 2 06:54 page_log -rw-r--r-- 1 root cups 128 Dec 1 19:12 page_log.1 -rw-r--r-- 1 root cups 188 Nov 23 12:17 page_log.2 -rw-r--r-- 1 root cups 108 Sep 8 14:41 page_log.3 -rw-r--r-- 1 root cups 465 May 1 2019 page_log.4 ```
List processes ``` $ curl -s http://localhost:8080/process nil 46717 0.0 0.0 111224 8196 pts/2 Sl 16:48 0:00 kapow server SystemMonitor root 47405 0.0 0.0 0 0 ? I 16:50 0:00 [kworker/3:1-mm_percpu_wq] root 47406 0.0 0.0 0 0 ? I 16:50 0:00 [kworker/0:1] root 47819 0.0 0.0 0 0 ? I 16:52 0:00 [kworker/7:2-mm_percpu_wq] root 47823 0.6 0.0 0 0 ? I< 16:52 0:01 [kworker/u17:0-hci0] nil 48345 0.0 0.0 7124 2804 pts/2 S 16:56 0:00 /bin/sh -c ps -aux | kapow set /response/body nil 48346 0.0 0.0 9392 3324 pts/2 R 16:56 0:00 ps -aux nil 48347 0.0 0.0 109304 7080 pts/2 Sl 16:56 0:00 kapow set /response/body ... ```
CPU properties ``` $ curl -s http://localhost:8080/cpu | head -n 30 processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 158 model name : Intel(R) Xeon(R) CPU E3-1505M v6 @ 3.00GHz stepping : 9 microcode : 0xca cpu MHz : 803.845 cache size : 8192 KB physical id : 0 siblings : 8 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 22 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp md_clear flush_l1d bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit bogomips : 6002.00 clflush size : 64 cache_alignment : 64 address sizes : 39 bits physical, 48 bits virtual power management: ```
Memory usage ``` $ curl -s http://localhost:8080/memory total used free shared buff/cache available Mem: 31967 3169 22636 734 6161 27608 Swap: 0 0 0 ```
Disk usage ``` $ curl -s http://localhost:8080/disk/usage Filesystem Size Used Avail Use% Mounted on dev 16G 0 16G 0% /dev run 16G 1.7M 16G 1% /run /dev/nvme0n1p2 468G 419G 26G 95% / tmpfs 16G 225M 16G 2% /dev/shm tmpfs 16G 0 16G 0% /sys/fs/cgroup tmpfs 16G 2.2M 16G 1% /tmp /dev/nvme0n1p1 549M 62M 488M 12% /boot /home/nil/.Private 468G 419G 26G 95% /home/nil tmpfs 3.2G 12K 3.2G 1% /run/user/1000 ```
Mount points ``` $ curl -s http://localhost:8080/disk/mounts proc on /proc type proc (rw,nosuid,nodev,noexec,relatime) sys on /sys type sysfs (rw,nosuid,nodev,noexec,relatime) dev on /dev type devtmpfs (rw,nosuid,relatime,size=16357376k,nr_inodes=4089344,mode=755) run on /run type tmpfs (rw,nosuid,nodev,relatime,mode=755) efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime) /dev/nvme0n1p2 on / type ext4 (rw,relatime) securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime) tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev) devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000) tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755) cgroup2 on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate) cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd) pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime) none on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700) cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event) cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio) cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct) cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset) cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma) cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio) cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer) cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices) cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb) cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids) cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory) ```
Open sockets ``` $ curl -s http://localhost:8080/socket Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port Process udp UNCONN 0 0 10.23.60.221:36922 0.0.0.0:* users:(("chromium",pid=2005,fd=85)) udp UNCONN 0 0 224.0.0.251:5353 0.0.0.0:* users:(("chromium",pid=2031,fd=36)) udp UNCONN 0 0 224.0.0.251:5353 0.0.0.0:* users:(("opera",pid=1376,fd=139)) udp UNCONN 0 0 224.0.0.251:5353 0.0.0.0:* users:(("chromium",pid=2005,fd=133)) udp UNCONN 0 0 224.0.0.251:5353 0.0.0.0:* users:(("chromium",pid=2031,fd=172)) udp UNCONN 0 0 10.23.60.221:51258 0.0.0.0:* users:(("opera",pid=1376,fd=180)) tcp LISTEN 0 4096 127.0.0.1:8081 0.0.0.0:* users:(("kapow",pid=46717,fd=3)) tcp LISTEN 0 4096 127.0.0.1:8082 0.0.0.0:* users:(("kapow",pid=46717,fd=6)) tcp LISTEN 0 5 127.0.0.1:631 0.0.0.0:* tcp LISTEN 0 4096 *:8080 *:* users:(("kapow",pid=46717,fd=5)) tcp LISTEN 0 5 [::1]:631 [::]:* ```
Show kernel messages ``` $ curl -s http://localhost:8080/kernel/messages [ 0.319770] DMAR: ANDD device: 2 name: \_SB.PCI0.I2C1 [ 0.319772] DMAR-IR: IOAPIC id 2 under DRHD base 0xfed91000 IOMMU 1 [ 0.319772] DMAR-IR: HPET id 0 under DRHD base 0xfed91000 [ 0.319773] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping. [ 0.321288] DMAR-IR: Enabled IRQ remapping in x2apic mode [ 0.321289] x2apic enabled [ 0.321302] Switched APIC routing to cluster x2apic. [ 0.325379] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.339725] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x2b3e459bf4c, max_idle_ns: 440795289890 ns [ 0.339730] Calibrating delay loop (skipped), value calculated using timer frequency.. 6002.00 BogoMIPS (lpj=10000000) [ 0.339732] pid_max: default: 32768 minimum: 301 [ 0.342052] LSM: Security Framework initializing [ 0.342056] Yama: becoming mindful. [ 0.342119] Mount-cache hash table entries: 65536 (order: 7, 524288 bytes, linear) [ 0.342165] Mountpoint-cache hash table entries: 65536 (order: 7, 524288 bytes, linear) [ 0.342178] *** VALIDATE tmpfs *** [ 0.342325] *** VALIDATE proc *** [ 0.342373] *** VALIDATE cgroup1 *** [ 0.342374] *** VALIDATE cgroup2 *** [ 0.342425] mce: CPU0: Thermal monitoring enabled (TM1) ```
Show systemd journal ``` $ curl -s http://localhost:8080/systemd/journal | head -n 10 -- Logs begin at Mon 2019-07-29 07:35:17 CEST, end at Mon 2020-01-27 17:05:10 CET. -- Jan 27 07:34:37 xan kernel: hid-generic 0003:1D50:6122.0008: input,hidraw7: USB HID v1.10 Mouse [Ultimate Gadget Laboratories Ultimate Hacking Keyboard] on usb-0000:0c:00.0-1.7/input4 Jan 27 07:34:37 xan mtp-probe[1053]: checking bus 3, device 5: "/sys/devices/pci0000:00/0000:00:1c.4/0000:04:00.0/0000:05:01.0/0000:07:00.0/0000:08:04.0/0000:0a:00.0/0000:0b:01.0/0000:0c:00.0/usb3/3-1/3-1.6" Jan 27 07:34:37 xan mtp-probe[1055]: checking bus 3, device 3: "/sys/devices/pci0000:00/0000:00:1c.4/0000:04:00.0/0000:05:01.0/0000:07:00.0/0000:08:04.0/0000:0a:00.0/0000:0b:01.0/0000:0c:00.0/usb3/3-1/3-1.1" Jan 27 07:34:37 xan mtp-probe[1054]: checking bus 3, device 6: "/sys/devices/pci0000:00/0000:00:1c.4/0000:04:00.0/0000:05:01.0/0000:07:00.0/0000:08:04.0/0000:0a:00.0/0000:0b:01.0/0000:0c:00.0/usb3/3-1/3-1.7" Jan 27 07:34:37 xan mtp-probe[1053]: bus: 3, device: 5 was not an MTP device Jan 27 07:34:37 xan mtp-probe[1054]: bus: 3, device: 6 was not an MTP device Jan 27 07:34:37 xan mtp-probe[1056]: checking bus 3, device 4: "/sys/devices/pci0000:00/0000:00:1c.4/0000:04:00.0/0000:05:01.0/0000:07:00.0/0000:08:04.0/0000:0a:00.0/0000:0b:01.0/0000:0c:00.0/usb3/3-1/3-1.5" Jan 27 07:34:37 xan mtp-probe[1056]: bus: 3, device: 4 was not an MTP device Jan 27 07:34:37 xan mtp-probe[1055]: bus: 3, device: 3 was not an MTP device ```