1. はじめに
IBM Cloudにはx86環境だけでなく、Power(UNIX)やIBM Z(ホスト）も提供されている。SysdigはIBM Z(Linux)環境でもサポートされているが、一般的にはx86環境でしか確認されていないように思えるので、IBM Z環境で試してみた。また、その際に、IBM Cloud docsで紹介されている方法で導入できるのか、何か別のworkaroundが必要なのかを確認してみた（結論としては、特別な考慮は必要なかった）。
なお、IBM Z環境下のSysdigは以下の制約がある。
https://docs.sysdig.com/en/docs/installation/sysdig-agent/agent-installation/agent-installation-requirements/#s390x-zlinux
また、IBM Zの仮想サーバーをプロビジョニングした際には、デフォルトで以下のようにモニタリング機能が稼働しており、（仮想サーバーにAgentを導入せずともハイパーバイザー経由のAgent less機能で）IBM Zの仮想サーバーのモニタリングができていることは確認できている。なお、こちらも内部的にはSysdigが使われている）
2. 環境情報
root@z-syasuda:~# cat /etc/issue
Ubuntu 20.04.2 LTS \n \l
root@z-syasuda:~# uname -a
Linux z-syasuda 5.4.0-132-generic #148-Ubuntu SMP Mon Oct 17 16:01:44 UTC 2022 s390x s390x s390x GNU/Linux
root@z-syasuda:~# cat /proc/cpuinfo
vendor_id : IBM/S390
# processors : 1
bogomips per cpu: 1167.00
max thread id : 0
features : esan3 zarch stfle msa ldisp eimm dfp edat etf3eh highgprs te vx vxd vxe gs vxe2 vxp sort dflt sie
facilities : 0 1 2 3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 30 31 32 33 34 35 36 37 38 40 41 42 43 44 45 47 48 49 50 51 52 53 54 57 58 59 60 61 64 65 69 71 73 74 75 76 77 78 80 81 82 129 130 131 133 134 135 138 139 146 147 148 150 151 152 155 156 161
cache0 : level=1 type=Data scope=Private size=128K line_size=256 associativity=8
cache1 : level=1 type=Instruction scope=Private size=128K line_size=256 associativity=8
cache2 : level=2 type=Data scope=Private size=4096K line_size=256 associativity=8
cache3 : level=2 type=Instruction scope=Private size=4096K line_size=256 associativity=8
cache4 : level=3 type=Unified scope=Shared size=262144K line_size=256 associativity=32
cache5 : level=4 type=Unified scope=Shared size=983040K line_size=256 associativity=60
processor 0: version = FF, identification = 07C708, machine = 8562
cpu number : 0
cpu MHz dynamic : 4500
cpu MHz static : 4500
root@z-syasuda:~#
root@z-syasuda:~#
root@z-syasuda:~#
root@z-syasuda:~# cat /proc/cpuinfo
vendor_id : IBM/S390
# processors : 1
bogomips per cpu: 1167.00
max thread id : 0
features : esan3 zarch stfle msa ldisp eimm dfp edat etf3eh highgprs te vx vxd vxe gs vxe2 vxp sort dflt sie
facilities : 0 1 2 3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 30 31 32 33 34 35 36 37 38 40 41 42 43 44 45 47 48 49 50 51 52 53 54 57 58 59 60 61 64 65 69 71 73 74 75 76 77 78 80 81 82 129 130 131 133 134 135 138 139 146 147 148 150 151 152 155 156 161
cache0 : level=1 type=Data scope=Private size=128K line_size=256 associativity=8
cache1 : level=1 type=Instruction scope=Private size=128K line_size=256 associativity=8
cache2 : level=2 type=Data scope=Private size=4096K line_size=256 associativity=8
cache3 : level=2 type=Instruction scope=Private size=4096K line_size=256 associativity=8
cache4 : level=3 type=Unified scope=Shared size=262144K line_size=256 associativity=32
cache5 : level=4 type=Unified scope=Shared size=983040K line_size=256 associativity=60
processor 0: version = FF, identification = 07C708, machine = 8562
cpu number : 0
cpu MHz dynamic : 4500
cpu MHz static : 4500
root@z-syasuda:~# cat /proc/sysinfo
Manufacturer: IBM
Type: 8562
LIC Identifier: 305c25ff624c6845
Model: A00 GT2
Sequence Code: 000000000004C708
Plant: 02
Model Capacity: A00 00000000
Capacity Adj. Ind.: 100
Capacity Ch. Reason: 0
Capacity Transient: 0
Type 1 Percentage: 0
Type 2 Percentage: 0
Type 3 Percentage: 0
Type 4 Percentage: 0
Type 5 Percentage: 0
（途中略）
LPAR Number: 7
LPAR Characteristics: Shared
LPAR Name: TOK1QZ07
LPAR Adjustment: 262
LPAR CPUs Total: 16
LPAR CPUs Configured: 16
LPAR CPUs Standby: 0
LPAR CPUs Reserved: 0
LPAR CPUs Dedicated: 0
LPAR CPUs Shared: 16
LPAR CPUs G-MTID: 0
LPAR CPUs S-MTID: 1
LPAR CPUs PS-MTID: 1
LPAR Extended Name:
LPAR UUID: c5e679ee-2306-11ed-a82d-525412345600
VM00 Name: k8s_039d
VM00 Control Program: KVM/Linux
VM00 Adjustment: 1000
VM00 CPUs Total: 1
VM00 CPUs Configured: 1
VM00 CPUs Standby: 0
VM00 CPUs Reserved: 0
VM00 Extended Name: k8s_039dbe6794084c7cb514a276dd2345da_02e7_c12d11c7-b69f-4ac3-9d35-5e7f24eebc34
VM00 UUID: c12d11c7-b69f-4ac3-9d35-5e7f24eebc34
3. Agentの導入および更新
以下のように本来は、Dockerで構成するべきらしいのだが、今回はAgentを直接導入してみた。更新も同様に実施すれば良い。
root@z-syasuda:~# curl -sL https://ibm.biz/install-sysdig-agent | sudo bash -s -- -a xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx -c ingest.private.jp-tok.monitoring.cloud.ibm.com --collector_port 6443 --secure true -ac "sysdig_capture_enabled: false"
* Detecting operating system
------------
WARNING: A Docker container is the only officially supported platform on s390x
------------
* Installing gnupg
* Installing Sysdig public key
OK
* Installing Sysdig repository
* Installing kernel headers
* Installing Sysdig Agent
Extracting templates from packages: 100%
Preconfiguring packages ...
Selecting previously unselected package gcc-9-base:s390x.
(Reading database ... 54306 files and directories currently installed.)
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Unpacking libc6:s390x (2.31-0ubuntu9.9) over (2.31-0ubuntu9.7) ...
Setting up libc6:s390x (2.31-0ubuntu9.9) ...
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(Reading database ... 54311 files and directories currently installed.)
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Unpacking draios-agent (12.11.0) ...
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Setting up libfile-fcntllock-perl (0.22-3build4) ...
Setting up libalgorithm-diff-perl (1.19.03-2) ...
Setting up binutils-common:s390x (2.34-6ubuntu1.4) ...
Setting up linux-libc-dev:s390x (5.4.0-139.156) ...
Setting up libctf-nobfd0:s390x (2.34-6ubuntu1.4) ...
Setting up libgomp1:s390x (10.3.0-1ubuntu1~20.04) ...
Setting up libfakeroot:s390x (1.24-1) ...
Setting up fakeroot (1.24-1) ...
update-alternatives: using /usr/bin/fakeroot-sysv to provide /usr/bin/fakeroot (fakeroot) in auto mode
Setting up make (4.2.1-1.2) ...
Setting up libmpc3:s390x (1.1.0-1) ...
Setting up libatomic1:s390x (10.3.0-1ubuntu1~20.04) ...
Setting up libdpkg-perl (1.19.7ubuntu3.2) ...
Setting up libubsan1:s390x (10.3.0-1ubuntu1~20.04) ...
Setting up libcrypt-dev:s390x (1:4.4.10-10ubuntu4) ...
Setting up libisl22:s390x (0.22.1-1) ...
Setting up libbinutils:s390x (2.34-6ubuntu1.4) ...
Setting up libc-dev-bin (2.31-0ubuntu9.9) ...
Setting up libalgorithm-diff-xs-perl (0.04-6) ...
Setting up libcc1-0:s390x (10.3.0-1ubuntu1~20.04) ...
Setting up dctrl-tools (2.24-3) ...
Setting up libitm1:s390x (10.3.0-1ubuntu1~20.04) ...
Setting up gcc-9-base:s390x (9.4.0-1ubuntu1~20.04.1) ...
Setting up libalgorithm-merge-perl (0.08-3) ...
Setting up libctf0:s390x (2.34-6ubuntu1.4) ...
Setting up binutils-s390x-linux-gnu (2.34-6ubuntu1.4) ...
Setting up binutils (2.34-6ubuntu1.4) ...
Setting up dpkg-dev (1.19.7ubuntu3.2) ...
Setting up libasan5:s390x (9.4.0-1ubuntu1~20.04.1) ...
Setting up cpp-9 (9.4.0-1ubuntu1~20.04.1) ...
Setting up libc6-dev:s390x (2.31-0ubuntu9.9) ...
Setting up libgcc-9-dev:s390x (9.4.0-1ubuntu1~20.04.1) ...
Setting up cpp (4:9.3.0-1ubuntu2) ...
Setting up gcc-9 (9.4.0-1ubuntu1~20.04.1) ...
Setting up libstdc++-9-dev:s390x (9.4.0-1ubuntu1~20.04.1) ...
Setting up gcc (4:9.3.0-1ubuntu2) ...
Setting up dkms (2.8.1-5ubuntu2) ...
Setting up draios-agent (12.11.0) ...
Loading new draios-agent-12.11.0 DKMS files...
Building for 5.4.0-132-generic
Building initial module for 5.4.0-132-generic
Done.
sysdigcloud-probe.ko:
Running module version sanity check.
- Original module
- No original module exists within this kernel
- Installation
- Installing to /lib/modules/5.4.0-132-generic/updates/dkms/
depmod...
DKMS: install completed.
Setting up g++-9 (9.4.0-1ubuntu1~20.04.1) ...
Setting up g++ (4:9.3.0-1ubuntu2) ...
update-alternatives: using /usr/bin/g++ to provide /usr/bin/c++ (c++) in auto mode
Setting up build-essential (12.8ubuntu1.1) ...
Processing triggers for systemd (245.4-4ubuntu3.15) ...
Processing triggers for man-db (2.9.1-1) ...
Processing triggers for libc-bin (2.31-0ubuntu9.7) ...
* Setting access key
* Setting collector endpoint
* Setting collector port
* Setting connection security
* Adding additional configuration to dragent.yaml
4. 導入後のAgent情報確認
root@z-syasuda:~# /opt/draios/bin/dragent --version
12.11.0
root@z-syasuda:~# cat /opt/draios/etc/dragent.yaml
customerid: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
collector: ingest.private.jp-tok.monitoring.cloud.ibm.com
collector_port: 6443
ssl: true
sysdig_capture_enabled: false
root@z-syasuda:~# systemctl status dragent
● dragent.service - LSB: Example initscript
Loaded: loaded (/etc/init.d/dragent; generated)
Active: active (running) since Wed 2023-02-15 22:58:26 UTC; 8min ago
Docs: man:systemd-sysv-generator(8)
Tasks: 40 (limit: 4778)
Memory: 108.3M
CGroup: /system.slice/dragent.service
├─9028 /opt/draios/bin/dragent --noipcns
├─9073 statsite -f /opt/draios/etc/statsite.ini
├─9074 /opt/draios/bin/dragent --noipcns
├─9075 /usr/bin/python3.8 /opt/draios/bin/sdchecks run
├─9076 /opt/draios/bin/dragent --noipcns
├─9077 cointerface --log_file /opt/draios/logs/k8s_klog.log --log_file_max_size 10 -v 0 --feature-gates K8sCommand=true
├─9078 promscrape_v2 --grpc.address=unix:/opt/draios/run/promscrape.sock --web.enable --web.listen-address=127.0.0.1:9990 --log.format=json --log.level=info --config.file=/opt/draios/etc/promscrape.yaml --source.label=pod_id,sys>
└─9131 /opt/draios/bin/dragent --noipcns
Feb 15 22:58:26 z-syasuda systemd[1]: Starting LSB: Example initscript...
Feb 15 22:58:26 z-syasuda systemd[1]: Started LSB: Example initscript.
Feb 15 22:58:26 z-syasuda statsite[9036]: Starting statsite.
Feb 15 22:58:26 z-syasuda statsite[9036]: Listening on stdin.
Feb 15 22:58:26 z-syasuda statsite[9036]: Listening on tcp '127.0.0.1:8125'
Feb 15 22:58:26 z-syasuda statsite[9036]: Listening on udp '127.0.0.1:8125'.
Feb 15 22:58:38 z-syasuda statsite[9073]: Starting statsite.
Feb 15 22:58:38 z-syasuda statsite[9073]: Listening on stdin.
Feb 15 22:58:38 z-syasuda statsite[9073]: Listening on tcp '127.0.0.1:8125'
Feb 15 22:58:38 z-syasuda statsite[9073]: Listening on udp '127.0.0.1:8125'.
5. モニタリング画像の確認
