# ip route show
default via 172.31.16.1 dev eth0 
10.244.1.0/24 via 10.244.1.0 dev flannel.1 onlink 
10.244.2.0/24 via 10.244.2.0 dev flannel.1 onlink 
10.244.3.0/24 via 10.244.3.0 dev flannel.1 onlink 
10.244.4.0/24 via 10.244.4.0 dev flannel.1 onlink 
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 
172.31.16.0/20 dev eth0 proto kernel scope link src 172.31.26.11

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels: 
    app: nginx-deployment
spec:
  selector:
    matchLabels:
      app: nginx
  replicas: 2 
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.14.2
        ports:
        - containerPort: 80

selector:
  matchLabels:
    component: redis
  matchExpressions:
    - {key: tier, operator: In, values: [cache]}
    - {key: environment, operator: NotIn, values: [dev]}

kubectl get pods --field-selector status.phase=Running

kubectl get services  --all-namespaces --field-selector metadata.namespace!=default

kubectl get pods --field-selector=status.phase!=Running,spec.restartPolicy=Always

kubectl get statefulsets,services --all-namespaces --field-selector metadata.namespace!=default

curl -L -O https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-8.8.2-x86_64.rpm
rpm -vi filebeat-8.8.2-x86_64.rpm

systemctl enable --now filebeat

# journalctl -f -u filebeat
{"type":"illegal_argument_exception","reason":"Validation Failed: 1: this action would add [2] total shards, but this cluster currently has [6924]/[3000] maximum shards open;"}

filebeat.inputs:
- type: log
  paths:
    - /home/logs/laravel-2023*
  tags: ["admin-log"]
  close_timeout: 3h
  clean_inactive: 72h
  ignore_older: 70h
  close_inactive: 5m

output.elasticsearch:
  hosts: ["1.56.219.122:9200", "1.57.115.214:9200", "1.52.53.31:9200"]
  username: "elastic"
  password: "passwd"
  index: "logstash-admin-%{+yyyy.MM.dd}"
setup.template.enabled: true
setup.template.name: "logstash-admin"
setup.template.pattern: "logstash-admin-*"

journalctl -f -u filebeat
INFO        [index-management]        idxmgmt/std.go:269        ILM policy successfully loaded.
ERROR        pipeline/output.go:100        Failed to connect to backoff(elasticsearch(http://1.57.115.214:9200)): Connection marked as failed because the onConnect callback failed: resource 'filebeat-7.5.2' exists, but it is not an alias
INFO        pipeline/output.go:93        Attempting to reconnect to backoff(elasticsearch(http://1.57.115.214:9200)) with 3 reconnect attempt(s)
INFO        elasticsearch/client.go:753        Attempting to connect to Elasticsearch version 7.6.2
INFO        [index-management]        idxmgmt/std.go:256        Auto ILM enable success.
INFO        [index-management.ilm]        ilm/std.go:138        do not generate ilm policy: exists=true, overwrite=false
INFO        [index-management]        idxmgmt/std.go:269        ILM policy successfully loaded.
ERROR        pipeline/output.go:100        Failed to connect to backoff(elasticsearch(http://1.56.219.122:9200)): Connection marked as failed because the onConnect callback failed: resource 'filebeat-7.5.2' exists, but it is not an alias
INFO        pipeline/output.go:93        Attempting to reconnect to backoff(elasticsearch(http://1.56.219.122:9200)) with 3 reconnect attempt(s)

yum install -y nc

# nc -vuz ip/domain 8472
Ncat: Version 7.50 ( https://nmap.org/ncat )
Ncat: Connected to ip:8472.
Ncat: UDP packet sent successfully
Ncat: 1 bytes sent, 0 bytes received in 2.01 seconds.

# nc -vuz 127.0.0.1 8473
Ncat: Version 7.50 ( https://nmap.org/ncat )
Ncat: Connected to 127.0.0.1:8473.
Ncat: Connection refused.

kubectl create namespace prometheus

pip install pyinstaller

pyinstaller --onefile test_file.py

pyinstaller --onefile --noconsole --windowed test_file.py

helm repo add rancher-latest https://releases.rancher.com/server-charts/latest

kubectl create namespace cattle-system

kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.7.1/cert-manager.crds.yaml

# 添加 Jetstack Helm 仓库
helm repo add jetstack https://charts.jetstack.io

# 更新本地 Helm Chart 仓库缓存
helm repo update

# 安装 cert-manager Helm Chart
helm install cert-manager jetstack/cert-manager \
  --namespace cert-manager \
  --create-namespace \
  --version v1.7.1

$ kubectl get pods -n cert-manager
NAME                                      READY   STATUS    RESTARTS   AGE
cert-manager-5b97785fbd-vvscn             1/1     Running   0          77s
cert-manager-cainjector-c8657d84f-6b8qr   1/1     Running   0          77s
cert-manager-webhook-8564679744-hjgkx     1/1     Running   0          77s

helm install rancher rancher-stable/rancher --namespace cattle-system \
     --set hostname=rancher.my.com --set bootstrapPassword=admin \
     --set ingress.ingressClassName=nginx

NAME: rancher
LAST DEPLOYED: Wed Oct 12 10:22:25 2022
NAMESPACE: cattle-system
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
Rancher Server has been installed.

NOTE: Rancher may take several minutes to fully initialize. Please standby while Certificates are being issued, Containers are started and the Ingress rule comes up.

Check out our docs at https://rancher.com/docs/

If you provided your own bootstrap password during installation, browse to https://rancher.my.com to get started.

If this is the first time you installed Rancher, get started by running this command and clicking the URL it generates:

```
echo https://rancher.my.com/dashboard/?setup=$(kubectl get secret --namespace cattle-system bootstrap-secret -o go-template='{{.data.bootstrapPassword|base64decode}}')
```

To get just the bootstrap password on its own, run:

```
kubectl get secret --namespace cattle-system bootstrap-secret -o go-template='{{.data.bootstrapPassword|base64decode}}{{ "\n" }}'
```


Happy Containering!

apiVersion: v1
data:
  blackbox.yml: |-
    modules:
      http_2xx:
        prober: http
        timeout: 10s
        http:
          preferred_ip_protocol: "ip4" ##如果http监测是使用ipv4 ,需要配置。默认使用 IPv6
      tcp_connect:
        prober: tcp
kind: ConfigMap
metadata:
  name: blackbox-export-config
  namespace: prometheus

apiVersion: apps/v1
kind: Deployment
metadata:
  name: prometheus-blackbox-export
  namespace: prometheus
  labels:
    app: prometheus-blackbox-export
spec:
  replicas: 1
  selector:
    matchLabels:
      app: prometheus-blackbox-export
  template:
    metadata:
      labels:
        app: prometheus-blackbox-export
    spec:
      containers:
        - name: prometheus-blackbox-export
          image: bitnami/blackbox-exporter
          args:
            - "--config.file=/etc/blackbox/blackbox.yml"
          ports:
            - containerPort: 9115
          resources:
            requests:
              cpu: 500m
              memory: 500M
            limits:
              cpu: 1
              memory: 1Gi
          volumeMounts:
            - name: blackbox-config-volume
              mountPath: /etc/blackbox/
      volumes:
        - name: blackbox-config-volume
          configMap:
            defaultMode: 420
            name: blackbox-export-config
---
apiVersion: v1
kind: Service
metadata:
  name: blackbox-service
  namespace: prometheus
spec:
  ports:
    - name: blackbox-port
      port: 9115
      protocol: TCP
      targetPort: 9115
  selector:
    app: prometheus-blackbox-export            

prometheus-7589d5bbdd-xdjwt:~# curl -v blackbox-service:9115
*   Trying 10.111.137.0:9115...
* Connected to blackbox-service (10.111.137.0) port 9115 (#0)
> GET / HTTP/1.1
> Host: blackbox-service:9115
> User-Agent: curl/8.0.1
> Accept: */*
> 
< HTTP/1.1 200 OK
< Content-Type: text/html
< Date: Tue, 26 Sep 2023 09:11:25 GMT
< Content-Length: 544
< 
<html>
    <head><title>Blackbox Exporter</title></head>
    <body>
    <h1>Blackbox Exporter</h1>
    <p><a href="probe?target=prometheus.io&module=http_2xx">Probe prometheus.io for http_2xx</a></p>
    <p><a href="probe?target=prometheus.io&module=http_2xx&debug=true">Debug probe prometheus.io for http_2xx</a></p>
    <p><a href="metrics">Metrics</a></p>
    <p><a href="config">Configuration</a></p>
    <h2>Recent Probes</h2>
    <table border='1'><tr><th>Module</th><th>Target</th><th>Result</th><th>Debug</th></table></body>
* Connection #0 to host blackbox-service left intact
    </html>

- job_name: 'blackbox_http_2xx'
    scrape_interval: 60s
    metrics_path: /probe
    params:
      module: [http_2xx]  # Look for a HTTP 200 response.
    static_configs:
        - targets:
          - http://www.google.com:5000/
    relabel_configs:
        - source_labels: [__address__]
          target_label: __param_target
        - source_labels: [__param_target]
          target_label: instance
        - target_label: __address__
          replacement: blackbox-service.prometheus.svc.cluster.local:9115

sudo zypper refresh

zypper search <package-name>

sudo zypper install <package-name>

zypper info <package-name>

sudo zypper remove <package-name>

sudo zypper update

>>> from huaweicloudsdkcore.auth.credentials import BasicCredentials
>>> from huaweicloudsdkecs.v2.region.ecs_region import EcsRegion
>>> from huaweicloudsdkcore.exceptions import exceptions
>>> from huaweicloudsdkecs.v2 import *

>>> ak = 'QONOKCeljdngdsEGSAM'
>>> sk = 'uD4ndlLqP5xDGSrgRRRPJGF8hg^HGkGl2'

>>> credentials = BasicCredentials(ak, sk)

>>> client = EcsClient.new_builder().with_credentials(credentials).with_region(EcsRegion.value_of("cn-east-2")).build()

>>> request = ListServersDetailsRequest()
>>> response = client.list_servers_details(request)

>>> import json

>>> server_info = json.loads(str(response))

>>> type(server_info)
<class 'dict'>

### 获取查询出的机器数量
>>> server_info['count']
2

### 云服务器列表 list[dict]
>>> server_info['servers']

### 获取云服务器的名称及 id
>>> server_info['servers'][0]['name']
>>> server_info['servers'][0]['id']

### 获取云服务器的配置规格信息
>>> server_info['servers'][0]['flavor']
{'id': 'c3.xlarge.2', 'name': 'c3.xlarge.2', 'disk': '0', 'vcpus': '4', 'ram': '8192'}

### 获取云服务器挂载的磁盘id
>>> server_info['servers'][0]['os-extended-volumes:volumes_attached']
[{'id': '1fd566f2-82bb-49d3-95d1-7452a5868f80', 'delete_on_termination': 'false', 'device': '/dev/vdb'}, {'id': '2deefa5c-e92b-4ec5-9914-10af9919c121', 'delete_on_termination': 'false', 'bootIndex': '0', 'device': '/dev/vda'}]

### 获取云服务器 IP 信息
### 首先在 'metadata' 中获取云服务器的 VPC id 信息，根据 VPC id 获取对应的 ip 信息
>>> server_info['servers'][0]['metadata']
{'lockScene': '', 'charging_mode': '1', 'vpc_id': '6827d6f5-4614-42a5-9762-15d3d173411c', 'metering.product_id': '00301-15033-0--0', 'lockSource': '', 'lockSourceId': '', 'metering.imagetype': 'gold', 'metering.order_id': 'CS23010203413KRGB', 'image_name': 'Windows Server 2016 Standard 64bit', 'metering.resourcespeccode': 'c3.xlarge.2.win', 'os_type': 'Windows', 'metering.resourcetype': '1', 'metering.image_id': 'dd714f2c-f470-43b6-afc8-34d8ec689516', 'os_bit': '64', 'EcmResStatus': '', 'lockCheckEndpoint': '', 'cascaded.instance_extrainfo': 'clock_adjustment:28800,pcibridge:1'}

>>> server_info['servers'][0]['metadata']['vpc_id']
'6827d6f5-4614-42a5-9762-15d3d173411c'

### 其中 {'OS-EXT-IPS:type': 'floating'} 表示公网 IP
>>> server_info['servers'][0]['addresses']['6827d6f5-4614-42a5-9762-15d3d173411c']
[{'version': '4', 'addr': '192.168.0.65', 'OS-EXT-IPS:type': 'fixed', 'OS-EXT-IPS-MAC:mac_addr': 'fa:16:3e:00:76:2a', 'OS-EXT-IPS:port_id': 'c1ec2783-6d3c-4d8a-9c55-abb59c2c648d'}, {'version': '4', 'addr': '159.138.38.203', 'OS-EXT-IPS:type': 'floating', 'OS-EXT-IPS-MAC:mac_addr': 'fa:16:3e:00:76:2a', 'OS-EXT-IPS:port_id': 'c1ec2783-6d3c-4d8a-9c55-abb59c2c648d'}]

>>> request = ListServerBlockDevicesRequest(server_id='a7dd4502-cb3e-4754-b7b7-73bcb5696a1c')

>>> response = client.list_server_block_devices(request)

>>> response
{"attachableQuantity": {"free_scsi": 58, "free_blk": 22, "free_disk": 58}, \
 "volumeAttachments": [{"bootIndex": 0, "pciAddress": "0000:02:01.0", "volumeId": "2deefa5c-e92b-4ec5-9914-10af9919c121", "device": "/dev/vda", "serverId": "a7dd4502-cb3e-4754-b7b7-73bcb5696a1c", \
                        "id": "2deefa5c-e92b-4ec5-9914-10af9919c121", "size": 100, "bus": "virtio"}, \
                        {"pciAddress": "0000:02:02.0", "volumeId": "1fd566f2-82bb-49d3-95d1-7452a5868f80", \
                        "device": "/dev/vdb", "serverId": "a7dd4502-cb3e-4754-b7b7-73bcb5696a1c", "id": "1fd566f2-82bb-49d3-95d1-7452a5868f80", "size": 100, "bus": "virtio"}]}

pip install edgegrid-python

>>> import requests
>>> from akamai.edgegrid import EdgeGridAuth, EdgeRc
>>> from urllib.parse import urljoin

>>> edgerc = EdgeRc('~/.edgerc')
>>> section = 'default'
>>> baseurl = 'https://%s' % edgerc.get(section, 'host')

>>> s = requests.Session()
>>> s.auth = EdgeGridAuth.from_edgerc(edgerc, section)

>>> result = s.get(urljoin(baseurl, '/papi/v1/groups'))

>>> result.json()
{'accountId': 'act_F-AC-488298736', 'accountName': 'Guangzhou kl Network Technology Co., Ltd', 'groups': {'items': [{'groupName': 'Guangzhou extreme-G-8HGkt-DSA', 'groupId': 'grp_186987767', 'contractIds': ['ctr_G-3JDoujhh']}]}}

# who -b 
system boot Dec 27 05:06

# who -r 
run-level 5 Dec 27 05:06

# last reboot
reboot   system boot  3.10.0-1160.76.1 Fri Jan 13 19:20 - 15:59 (236+20:38) 
reboot   system boot  3.10.0-1160.76.1 Fri Jan 13 19:00 - 15:59 (236+20:58) 
reboot   system boot  3.10.0-1160.76.1 Tue Dec 20 11:18 - 15:59 (261+04:40) 
reboot   system boot  3.10.0-1160.76.1 Thu Oct 27 12:04 - 11:17 (53+23:12)  
reboot   system boot  3.10.0-1160.76.1 Fri Sep 16 16:26 - 11:28 (40+19:02)  
reboot   system boot  3.10.0-1160.76.1 Mon Aug 22 17:52 - 16:15 (24+22:22)  
reboot   system boot  3.10.0-1160.76.1 Mon Aug 22 17:15 - 17:51  (00:36)

split -b 100M -d test.file

$ split -b 100M -d test.file
x00  x03  x06  x09  x12  x15  x18  x21  x24  x27  x30  x33               
x01  x04  x07  x10  x13  x16  x19  x22  x25  x28  x31  test.file
x02  x05  x08  x11  x14  x17  x20  x23  x26  x29  x32  

wget https://nodejs.org/dist/latest/node-v15.12.0-linux-x64.tar.gz
tar -xf node-v15.12.0-linux-x64.tar.gz -C /usr/local
ln -s /usr/local/node-v15.12.0-linux-x64/bin/* /bin/

npm install pm2 -g
npm install -g pm2@3.5.1    # 安装指定版本
npm install -g pm2@latest   # 安装最新版本

npm install pm2

npm install -g pm2@3.5.1

# npm show hexo versions
[
  '3.3.9',        '3.4.0',        '3.4.1',       '3.4.2',        '3.4.3',
  '3.4.4',        '3.5.0',        '3.6.0',       '3.7.0',        '3.7.1',
  '3.8.0',        '3.9.0',        '4.0.0',       '4.1.0',        '4.1.1',
  '4.2.0',        '4.2.1',        '5.0.0',       '5.0.1',        '5.0.2',
  '5.1.0',        '5.1.1',        '5.2.0',       '5.3.0',        '5.4.0',
  '5.4.1',        '5.4.2',        '6.0.0',       '6.1.0',        '6.2.0',
  '6.3.0',        '7.0.0-rc1',    '7.0.0-rc2'
]

npm ls

npm ls -g

npm uninstall package_name

npm uninstall package_name -g

npm install --unsafe-perm

wcscmd --configure [--config=FILE] 

wcscmd listbucket 
wcscmd stat wcs://BUCKET/OBJECT  \# 查询文件信息
wcscmd deletePrefix wcs://BUCKET PREFIX  \# 根据前缀（文件路径，必须从头开始匹配，不需要最前面的/）删除目录或文件
wcscmd put wcs://BUCKET/file file

wcscmd listall wcs://BUCKET ./temp/f