🥇Inkukhu noma iqanda: ukuhlukanisa i-IaC

Yini eyafika kuqala - inkukhu noma iqanda? Isiqalo esiyinqaba ngempela sendatshana emayelana Nengqalasizinda-njenge-Code, akunjalo?

Liyini iqanda?

Ngokuvamile, Ingqalasizinda-njenge-Code (IaC) iyindlela ememezelayo yokumela ingqalasizinda. Kuyo sichaza isimo esifuna ukusifinyelela, siqala engxenyeni yehadiwe futhi sigcine ngokucushwa kwesoftware. Ngakho-ke i-IaC isetshenziselwa:

Ukuhlinzekwa kwezinsiza. Lawa ama-VM, S3, VPC, njll. Amathuluzi ayisisekelo okusebenza: I-Terraform и CloudFormation.
Ukucushwa Kwesoftware. Amathuluzi ayisisekelo: Ansible, Umpheki, njll.

Noma iyiphi ikhodi iku-git repositories. Futhi ngokushesha noma kamuva umholi weqembu uzonquma ukuthi badinga ukuhlelwa. Futhi uzokwenza refactor. Futhi izodala isakhiwo esithile. Futhi uzobona ukuthi kuhle lokhu.

Kuhle futhi ukuthi isivele ikhona I-GitLab и GitHub-umhlinzeki weTerraform (futhi lokhu Ukucushwa Kwesoftware). Ngosizo lwabo, ungaphatha yonke iphrojekthi: amalungu eqembu, i-CI/CD, i-git-flow, njll.

Lavelaphi iqanda?

Ngakho kancane kancane sisondela embuzweni oyinhloko.

Okokuqala, udinga ukuqala ngenqolobane echaza isakhiwo sezinye izinqolobane, kuhlanganise nawe. Futhi kunjalo, njengengxenye ye-GitOps, udinga ukwengeza i-CI ukuze izinguquko zenzeke ngokuzenzakalelayo.

Uma i-Git ingakadalwa?

Ungayigcina kanjani ku-Git?
Indlela yokufaka i-CI?
Uma futhi sisebenzisa i-Gitlab sisebenzisa i-IaC, ngisho naku-Kubernetes?
Futhi i-GitLab Runner nayo ku-Kubernetes?
Kuthiwani nge-Kubernetes kumhlinzeki wamafu?

Yini eza kuqala: i-GitLab lapho ngizolayisha khona ikhodi yami, noma ikhodi echaza ukuthi hlobo luni lwe-GitLab engiludingayo?

Inkukhu namaqanda

«Oyakodon3 nge-dinosaur" [src]

Ake sizame ukupheka isidlo sisebenzisa njengomhlinzeki wamafu Iphethwe i-Kubernetes Selectel.

TL; DR

Kungenzeka yini ukujoyina iqembu elilodwa ngesikhathi esisodwa?

$ export MY_SELECTEL_TOKEN=<token>
$ curl https://gitlab.com/chicken-or-egg/mks/make/-/snippets/2002106/raw | bash

Izithako:

I-akhawunti evela ku-my.selectel.ru;
Ithokheni ye-akhawunti;
Amakhono e-Kubernetes;
Amakhono oHelm;
Amakhono e-Terraform;
Ishadi le-Helm GitLab;
Ishadi le-Helm GitLab Runner.

Iresiphi:

Thola i-MY_SELECTEL_TOKEN kusuka kuphaneli my.selectel.ru.
Dala iqoqo le-Kubernetes ngokudlulisela ithokheni ye-akhawunti kulo.
Thola i-KUBECONFIG kusukela kuqoqo elidaliwe.
Faka i-GitLab ku-Kubernetes.
Thola ithokheni ye-GitLab evela ku-GitLab eyenzelwe umsebenzisi izimpande.
Dala ukwakheka kwephrojekthi ku-GitLab usebenzisa ithokheni ye-GitLab.
Phusha ikhodi ekhona ku-GitLab.
???
Inzuzo!

Isinyathelo 1. Ithokheni ingatholakala esigabeni Okhiye be-API.

Isinyathelo 2. Silungiselela i-Terraform yethu "yokubhaka" iqoqo lamanodi angu-2. Uma uqinisekile ukuthi unezinsiza ezanele zayo yonke into, ungavumela ama-quota azenzakalelayo:

provider "selectel" {
 token = var.my_selectel_token
}

variable "my_selectel_token" {}
variable "username" {}
variable "region" {}


resource "selectel_vpc_project_v2" "my-k8s" {
 name = "my-k8s-cluster"
 theme = {
   color = "269926"
 }
 quotas {
   resource_name = "compute_cores"
   resource_quotas {
     region = var.region
     zone = "${var.region}a"
     value = 16
   }
 }
 quotas {
   resource_name = "network_floatingips"
   resource_quotas {
     region = var.region
     value = 1
   }
 }
 quotas {
   resource_name = "load_balancers"
   resource_quotas {
     region = var.region
     value = 1
   }
 }
 quotas {
   resource_name = "compute_ram"
   resource_quotas {
     region = var.region
     zone = "${var.region}a"
     value = 32768
   }
 }
 quotas {
   resource_name = "volume_gigabytes_fast"
   resource_quotas {
     region = var.region
     zone = "${var.region}a"
     # (20 * 2) + 50 + (8 * 3 + 10)
     value = 130
   }
 }
}

resource "selectel_mks_cluster_v1" "k8s-cluster" {
 name         = "k8s-cluster"
 project_id   = selectel_vpc_project_v2.my-k8s.id
 region       = var.region
 kube_version = "1.17.9"
}

resource "selectel_mks_nodegroup_v1" "nodegroup_1" {
 cluster_id        = selectel_mks_cluster_v1.k8s-cluster.id
 project_id        = selectel_mks_cluster_v1.k8s-cluster.project_id
 region            = selectel_mks_cluster_v1.k8s-cluster.region
 availability_zone = "${var.region}a"
 nodes_count       = 2
 cpus              = 8
 ram_mb            = 16384
 volume_gb         = 15
 volume_type       = "fast.${var.region}a"
 labels            = {
   "project": "my",
 }
}

Engeza umsebenzisi kuphrojekthi:

resource "random_password" "my-k8s-user-pass" {
 length = 16
 special = true
 override_special = "_%@"
}

resource "selectel_vpc_user_v2" "my-k8s-user" {
 password = random_password.my-k8s-user-pass.result
 name = var.username
 enabled  = true
}

resource "selectel_vpc_keypair_v2" "my-k8s-user-ssh" {
 public_key = file("~/.ssh/id_rsa.pub")
 user_id    = selectel_vpc_user_v2.my-k8s-user.id
 name = var.username
}

resource "selectel_vpc_role_v2" "my-k8s-role" {
 project_id = selectel_vpc_project_v2.my-k8s.id
 user_id    = selectel_vpc_user_v2.my-k8s-user.id
}

Okukhiphayo:

output "project_id" {
 value = selectel_vpc_project_v2.my-k8s.id
}

output "k8s_id" {
 value = selectel_mks_cluster_v1.k8s-cluster.id
}

output "user_name" {
 value = selectel_vpc_user_v2.my-k8s-user.name
}

output "user_pass" {
 value = selectel_vpc_user_v2.my-k8s-user.password
}

Masiqalise:

$ env 
TF_VAR_region=ru-3 
TF_VAR_username=diamon 
TF_VAR_my_selectel_token=<token> 
terraform plan -out planfile

$ terraform apply -input=false -auto-approve planfile

Isinyathelo 3. Sithola i-cubeconfig.

Ukuze ulande i-KUBECONFIG ngokuhlelekile, udinga ukuthola ithokheni ku-OpenStack:

openstack token issue -c id -f value > token

Futhi ngaleli thokheni yenza isicelo ku-Managed Kubernetes Selectel API. k8s_id izindaba terraform:

curl -XGET -H "x-auth-token: $(cat token)" "https://ru-3.mks.selcloud.ru/v1/clusters/$(cat k8s_id)/kubeconfig" -o kubeConfig.yaml

I-Cupconfig ingafinyelelwa ngephaneli.

Isinyathelo 4. Ngemva kokuba iqoqo selibhakiwe futhi sesikwazi ukulifinyelela, singangeza i-yaml phezulu ukuze sinambithe.

Ngincamela ukungeza:

indawo yamagama
ikilasi lokugcina
inqubomgomo yokuphepha ye-pod nokunye.

Ikilasi Lokugcina ye-Selectel ingathathwa kuyo inqolobane esemthethweni.

Kusukela ekuqaleni ngikhethe iqoqo endaweni ru-3a, bese ngidinga Ikilasi Lesitoreji kusuka kule zoni.

kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
 name: fast.ru-3a
 annotations:
   storageclass.kubernetes.io/is-default-class: "true"
provisioner: cinder.csi.openstack.org
parameters:
 type: fast.ru-3a
 availability: ru-3a
allowVolumeExpansion: true

Isinyathelo 5. Faka isilinganisi somthwalo.

Sizosebenzisa okujwayelekile kwabaningi nginx-ingress. Sekuvele kunemiyalo eminingi yokuyifaka, ngakho-ke ngeke sihlale kuyo.

$ helm repo add nginx-stable https://helm.nginx.com/stable
$ helm upgrade nginx-ingress nginx-stable/nginx-ingress -n ingress --install -f ../internal/K8S-cluster/ingress/values.yml

Silinda ukuthi ithole i-IP yangaphandle cishe imizuzu emi-3-4:

Ithole i-IP yangaphandle:

Isinyathelo 6. Faka i-GitLab.

$ helm repo add gitlab https://charts.gitlab.io
$ helm upgrade gitlab gitlab/gitlab -n gitlab  --install -f gitlab/values.yml --set "global.hosts.domain=gitlab.$EXTERNAL_IP.nip.io"

Siphinde silinde ukuthi wonke ama-pods akhuphuke.

kubectl get po -n gitlab
NAME                                      	READY   STATUS  	RESTARTS   AGE
gitlab-gitaly-0                           	0/1 	Pending 	0      	0s
gitlab-gitlab-exporter-88f6cc8c4-fl52d    	0/1 	Pending 	0      	0s
gitlab-gitlab-runner-6b6867c5cf-hd9dp     	0/1 	Pending 	0      	0s
gitlab-gitlab-shell-55cb6ccdb-h5g8x       	0/1 	Init:0/2	0      	0s
gitlab-migrations.1-2cg6n                 	0/1 	Pending 	0      	0s
gitlab-minio-6dd7d96ddb-zd9j6             	0/1 	Pending 	0      	0s
gitlab-minio-create-buckets.1-bncdp       	0/1 	Pending 	0      	0s
gitlab-postgresql-0                       	0/2 	Pending 	0      	0s
gitlab-prometheus-server-6cfb57f575-v8k6j 	0/2 	Pending 	0      	0s
gitlab-redis-master-0                     	0/2 	Pending 	0      	0s
gitlab-registry-6bd77b4b8c-pb9v9          	0/1 	Pending 	0      	0s
gitlab-registry-6bd77b4b8c-zgb6r          	0/1 	Init:0/2	0      	0s
gitlab-shared-secrets.1-pc7-5jgq4         	0/1 	Completed   0      	20s
gitlab-sidekiq-all-in-1-v1-54dbcf7f5f-qbq67   0/1 	Pending 	0      	0s
gitlab-task-runner-6fd6857db7-9x567       	0/1 	Pending 	0      	0s
gitlab-webservice-d9d4fcff8-hp8wl         	0/2 	Pending 	0      	0s
Waiting gitlab
./wait_gitlab.sh ../internal/gitlab/gitlab/.pods
waiting for pod...
waiting for pod...
waiting for pod...

Ama-pods rose:

Isinyathelo 7. Sithola ithokheni ye-GitLab.

Okokuqala, thola iphasiwedi yokungena:

kubectl get secret -n gitlab gitlab-gitlab-initial-root-password -o jsonpath='{.data.password}' | base64 --decode

Manje ake singene futhi sithole ithokheni:

python3 get_gitlab_token.py root $GITLAB_PASSWORD http://gitlab.gitlab.$EXTERNAL_IP.nip.io

Isinyathelo 8. Ukuletha amakhosombe e-Git ohlwini olulungile kusetshenziswa Umhlinzeki we-Gitlab.

cd ../internal/gitlab/hierarchy && terraform apply -input=false -auto-approve planfile

Ngeshwa, umhlinzeki we-terraform GitLab unokuntanta iphutha. Bese kuzodingeka ukuthi ususe amaphrojekthi angqubuzanayo ngesandla ukuze i-tf.state ilungiswe. Bese uqalisa kabusha umyalo othi `$make all`

Isinyathelo 9. Sidlulisela amakhosombe endawo kuseva.

$ make push

[master (root-commit) b61d977]  Initial commit
 3 files changed, 46 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 values.yml
Enumerating objects: 5, done.
Counting objects: 100% (5/5), done.
Delta compression using up to 8 threads
Compressing objects: 100% (5/5), done.
Writing objects: 100% (5/5), 770 bytes | 770.00 KiB/s, done.
Total 5 (delta 0), reused 0 (delta 0)

Kwenziwe:

isiphetho

Sizuze ukuthi singakwazi ukuphatha yonke into ngokumemezela emshinini wethu wasendaweni. Manje ngifuna ukudlulisela yonke le misebenzi ku-CI bese ngivele ngicindezele izinkinobho. Ukuze senze lokhu, sidinga ukudlulisela izifunda zethu zasendaweni (isifunda se-Terraform) ku-CI. Indlela yokwenza lokhu isengxenyeni elandelayo.

Bhalisela yethu блогukuze ungaphuthelwa ukukhululwa kwezihloko ezintsha!

Source: www.habr.com

Inkukhu noma iqanda: i-IaC ehlukanisayo