Ka anyị gosipụta ọnyà ole na ole, gụnyere ndị metụtara loops, ma ọ bụrụ na nkwupụta na usoro mbugharị, yana okwu ndị ọzọ na-emetụta Terraform n'ozuzu:
- ọnụ ọgụgụ na maka_ọ bụla paramita nwere oke;
- belata oge nkwụsịtụ efu;
- ọbụna ezigbo atụmatụ nwere ike ịda;
- refactoring nwere ike inwe ọnyà ya;
- nkwekọ akwụsịla akwụsị na-agbanwe agbanwe... na nbugharị.
Ọnụọgụ na maka paramita ọ bụla nwere oke
Ọmụmaatụ ndị dị n'isiakwụkwọ a na-eji oke ọnụọgụgụ na okwu maka_ọ bụla na loops na mgbagha ọnọdụ. Ha na-arụ ọrụ nke ọma, mana ha nwere oke abụọ dị mkpa ị kwesịrị ịma.
- Gụọ na maka_onye ọ bụla enweghị ike ịkọwapụta mgbanwe mgbanwe akụrụngwa ọ bụla.
- gụọ na maka_ọ bụla enweghị ike iji na nhazi modul.
gụọ na maka_onye ọ bụla enweghị ike ịkọwapụta mgbanwe mgbanwe akụrụngwa ọ bụla
Were ya na ị ga-ebuga ọtụtụ sava EC2 na n'ihi ihe ụfọdụ ị chọghị iji ASG. Koodu gị nwere ike ịdị ka nke a:
resource "aws_instance" "example_1" {
count = 3
ami = "ami-0c55b159cbfafe1f0"
instance_type = "t2.micro"
}
Ka anyị leba anya na ha otu otu.
Ebe ọ bụ na atọrọ ngụkọ ọnụ na uru kwụ ọtọ, koodu a ga-arụ ọrụ n'enweghị nsogbu: mgbe ị na-agba ọsọ itinye iwu, ọ ga-emepụta sava EC2 atọ. Mana gịnị ma ọ bụrụ na ịchọrọ ibuga otu ihe nkesa na mpaghara nnweta ọ bụla (AZ) n'ime mpaghara AWS gị ugbu a? Ị nwere ike ibunye koodu gị ndepụta mpaghara site na isi iyi data aws_availability_zones wee pịa nke ọ bụla wee mepụta sava EC2 n'ime ya site na iji paramita ọnụọgụ na ohere ntinye aha:
resource "aws_instance" "example_2" {
count = length(data.aws_availability_zones.all.names)
availability_zone = data.aws_availability_zones.all.names[count.index]
ami = "ami-0c55b159cbfafe1f0"
instance_type = "t2.micro"
}
data "aws_availability_zones" "all" {}Koodu a ga-arụkwa ọrụ nke ọma, ebe ọ bụ na ọnụọgụgụ nwere ike idetu isi mmalite data n'enweghị nsogbu ọ bụla. Ma gịnị na-eme ma ọ bụrụ na ọnụọgụ nke sava ịchọrọ ịmepụta dabere na mmepụta nke ụfọdụ akụ? Iji gosi nke a, ụzọ kacha mfe bụ iji random_integer akụ, nke, dị ka aha na-egosi, weghachiri a random integer:
resource "random_integer" "num_instances" {
min = 1
max = 3
}Koodu a na-ewepụta nọmba random n'etiti 1 na 3. Ka anyị hụ ihe ga-eme ma ọ bụrụ na anyị nwaa iji mmepụta nke akụ a na ọnụọgụgụ nke aws_instance akụ:
resource "aws_instance" "example_3" {
count = random_integer.num_instances.result
ami = "ami-0c55b159cbfafe1f0"
instance_type = "t2.micro"
}Ọ bụrụ na ị na-eme atụmatụ terraform na koodu a, ị ga-enweta njehie a:
Error: Invalid count argument
on main.tf line 30, in resource "aws_instance" "example_3":
30: count = random_integer.num_instances.result
The "count" value depends on resource attributes that cannot be determined until apply, so Terraform cannot predict how many instances will be created. To work around this, use the -target argument to first apply only the resources that the count depends on.Terraform chọrọ ka agụọ ọnụ na maka_onye ọ bụla ga-agbakọ n'oge a na-eme atụmatụ, tupu emee ma ọ bụ gbanwee akụrụngwa ọ bụla. Nke a pụtara na ọnụ na maka_ọ bụla nwere ike na-ezo aka na nkịtị, mgbanwe, isi mmalite data, na ọbụna ndepụta ihe onwunwe (ọ bụrụhaala na ogologo ha nwere ike ikpebi na oge nhazi oge), ma ọ bụghị gbakọọ akụ mmepụta variables.
gụọ na maka_ọ bụla enweghị ike iji na nhazi modul
Otu ụbọchị enwere ike ịnwa gị ịgbakwunye paramita ọnụọgụ na nhazi modul gị:
module "count_example" {
source = "../../../../modules/services/webserver-cluster"
count = 3
cluster_name = "terraform-up-and-running-example"
server_port = 8080
instance_type = "t2.micro"
}Koodu a na-anwa iji ịgụta n'ime modul mepụta nnomi atọ nke akụrụngwa webụsaịtị-ụyọkọ. Ma ọ bụ ị nwere ike ime ka ijikọ modul nhọrọ dabere na ụfọdụ ọnọdụ Boolean site na ịtọ ntọala ọnụ ya na 0. Nke a nwere ike ịdị ka koodu ezi uche dị na ya, mana ị ga-enweta njehie a mgbe ị na-eme atụmatụ terraform:
Error: Reserved argument name in module block
on main.tf line 13, in module "count_example":
13: count = 3
The name "count" is reserved for use in a future version of Terraform.Ọ dị nwute, dịka nke Terraform 0.12.6, anaghị akwado iji ọnụ ọgụgụ ma ọ bụ maka_ọ bụla na akụrụngwa modul. Dabere na ndetu ntọhapụ Terraform 0.12 (http://bit.ly/3257bv4), HashiCorp na-ezube ịgbakwunye ikike a n'ọdịniihu, yabụ dabere na mgbe ị gụrụ akwụkwọ a, ọ nwere ike ịdị adị. Iji chọpụta nke ọma, .
Mmachi nke ntinye oge nkwụsị efu efu
Iji create_before_destroy ngọngọ jikọtara ya na ASG bụ nnukwu ngwọta maka ịmepụta oge nkwụsịtụ efu, ma e wezụga otu caveat: akwadoghị iwu autoscaling. Ma ọ bụ ka ọ bụrụ nke ziri ezi, nke a na-emegharị nha ASG azụ na min_size na ntinye ọ bụla, nke nwere ike ịbụ nsogbu ma ọ bụrụ na ị na-eji iwu autoscaling na-amụba ọnụ ọgụgụ nke sava na-agba ọsọ.
Dịka ọmụmaatụ, modul webserver-cluster nwere ụzọ akụrụngwa aws_autoscaling_schedule, nke na elekere itoolu nke ụtụtụ na-abawanye ọnụọgụ nke sava na ụyọkọ ahụ site na abụọ ruo iri. Ọ bụrụ na ibuga na, sịnụ, 9 am, ASG ọhụrụ ga-eji naanị sava abụọ bulite karịa iri ma nọrọ n'ụzọ ahụ ruo elekere 11 nke ụtụtụ n'echi ya.
Enwere ike wezuga mmachi a n'ọtụtụ ụzọ.
- Gbanwee usoro nlọghachi azụ na aws_autoscaling_schedule site na 0 9 * * * ("na-agba na elekere 9 nke ụtụtụ") ka ọ bụrụ ihe dịka 0-59 9-17 * * * ("na-agba ọsọ kwa nkeji site na 9 ụtụtụ ruo 5 pm"). Ọ bụrụ na ASG enweelarị sava iri, na-agba ọsọ iwu autoscaling ọzọ agaghị agbanwe ihe ọ bụla, nke bụ ihe anyị chọrọ. Mana ọ bụrụ na etinyere ASG n'oge na-adịbeghị anya, iwu a ga-ahụ na n'ime nkeji kacha karịa ọnụọgụ nke sava ya ga-eru iri. Nke a abụghị ụzọ mara mma kpamkpam, na nnukwu jumps site na iri gaa na sava abụọ na azụ nwekwara ike ịkpata nsogbu maka ndị ọrụ.
- Mepụta edemede omenala nke na-eji AWS API iji chọpụta ọnụọgụ nke sava na-arụ ọrụ na ASG, kpọọ ya site na iji isi iyi data mpụga (lee "Isi Data Mpụga" na ibe 249), wee tọọ paramita_ike ASG chọrọ na uru nke eweghachiri. edemede ahụ. N'ụzọ dị otú a, ihe atụ ASG ọhụrụ ọ bụla ga-agba ọsọ mgbe niile n'otu ikike dị ka koodu Terraform dị ugbu a ma mee ka ọ sie ike ịnọgide na-enwe.
N'ezie, Terraform gaara enwe nkwado nkwado maka mbugharị oge efu, mana dịka nke Mee 2019, ndị otu HashiCorp enweghị atụmatụ ịgbakwunye ọrụ a.).
Enwere ike mejuputa atụmatụ ziri ezi nke ọma
Mgbe ụfọdụ, iwu atụmatụ na-ewepụta atụmatụ mbugharị zuru oke, mana iwu etinyere na-eweghachi mperi. Gbalịa, dịka ọmụmaatụ, tinye akụrụngwa aws_iam_user n'otu aha ahụ ị jiri maka onye ọrụ IAM nke ị mepụtara na mbụ n'Isi nke 2:
resource "aws_iam_user" "existing_user" {
# Подставьте сюда имя уже существующего пользователя IAM,
# чтобы попрактиковаться в использовании команды terraform import
name = "yevgeniy.brikman"
}Ugbu a, ọ bụrụ na ị na-agba ọsọ iwu atụmatụ, Terraform ga-ewepụta atụmatụ mbugharị nke yiri ezi uche:
Terraform will perform the following actions:
# aws_iam_user.existing_user will be created
+ resource "aws_iam_user" "existing_user" {
+ arn = (known after apply)
+ force_destroy = false
+ id = (known after apply)
+ name = "yevgeniy.brikman"
+ path = "/"
+ unique_id = (known after apply)
}
Plan: 1 to add, 0 to change, 0 to destroy.Ọ bụrụ n’ịgbara iwu itinye, ị ga-enweta njehie a:
Error: Error creating IAM User yevgeniy.brikman: EntityAlreadyExists:
User with name yevgeniy.brikman already exists.
on main.tf line 10, in resource "aws_iam_user" "existing_user":
10: resource "aws_iam_user" "existing_user" {Nsogbu, n'ezie, bụ na onye ọrụ IAM nwere aha ahụ adịlarị. Nke a nwere ike ime ọ bụghị naanị ndị ọrụ IAM, mana ọ fọrọ nke nta ka ọ bụrụ akụrụngwa ọ bụla. Ọ ga-ekwe omume na mmadụ jiri aka ya mepụta akụrụngwa a ma ọ bụ jiri ahịrị iwu, mana n'ụzọ ọ bụla, ID dakọtara na-eduga na esemokwu. Enwere ọtụtụ ọdịiche nke njehie a na-ejidekarị ndị ọhụrụ na Terraform na mberede.
Isi ihe bụ na iwu atụmatụ terraform na-eburu n'uche akụrụngwa ndị akọwapụtara na faịlụ steeti Terraform. Ọ bụrụ na emepụtara akụrụngwa n'ụzọ ọzọ (dịka ọmụmaatụ, iji aka site na ịpị na njikwa AWS), ha agaghị ejedebe na faịlụ steeti ya mere Terraform agaghị eburu ha n'uche mgbe ị na-eme atụmatụ atụmatụ. N'ihi ya, atụmatụ nke yiri ihe ziri ezi na nlele mbụ ga-apụta na ọ gaghị aga nke ọma.
Enwere ihe abụọ a ga-amụta na nke a.
- Ọ bụrụ na ịmalitelarị ịrụ ọrụ na Terraform, ejila ihe ọ bụla ọzọ. Ọ bụrụ na ejiri Terraform jikwaa akụkụ nke akụrụngwa gị, ị nweghịzi ike iji aka gbanwee ya. Ma ọ bụghị ya, ọ bụghị naanị na ị ga-etinye ihe ize ndụ dị egwu Terraform njehie, mana ị na-ewepụkwa ọtụtụ uru nke IaC ebe ọ bụ na koodu agaghị abụzi ihe nnọchianya ziri ezi nke akụrụngwa gị.
- Ọ bụrụ na ịnweelarị akụrụngwa ụfọdụ, jiri iwu mbubata. Ọ bụrụ na ị na-amalite iji Terraform nwere akụrụngwa dị adị, ị nwere ike tinye ya na faịlụ steeti site na iji iwu mbubata terraform. N'ụzọ dị otú a, Terraform ga-amata akụrụngwa kwesịrị ijikwa ya. Iwu mbubata na-ewe arụmụka abụọ. Nke mbụ bụ adreesị akụrụngwa na faịlụ nhazi gị. Okwu syntax ebe a bụ otu maka njikọ akụrụngwa: _. (dị ka aws_iam_user.existing_user). Arụmụka nke abụọ bụ ID nke akụrụngwa a ga-ebubata. Ka anyị kwuo na ID akụrụngwa aws_iam_user bụ aha njirimara (dịka ọmụmaatụ, yevgeniy.brikman), yana ID aws_instance bụ NJ sava EC2 (dị ka i-190e22e5). A na-egosipụtakarị otu esi ebubata akụrụngwa na akwụkwọ dị n'okpuru ibe ya.
N'okpuru bụ iwu mbubata nke na-emekọrịta akụrụngwa aws_iam_user nke ị gbakwunyere na nhazi Terraform gị yana onye ọrụ IAM n'Isi nke 2 (na-anọchi aha gị maka yevgeniy.brikman, n'ezie):
$ terraform import aws_iam_user.existing_user yevgeniy.brikmanTerraform ga-akpọ API AWS ka ịchọta onye ọrụ IAM gị wee mepụta njikọ faịlụ steeti n'etiti ya na aws_iam_user.existing_user resource na nhazi Terraform gị. Site ugbu a gaa n'ihu, mgbe ị na-eme atụmatụ atụmatụ, Terraform ga-ama na onye ọrụ IAM adịlarị ma ọ gaghị anwa ịmepụta ya ọzọ.
Ọ dị mma ịmara na ọ bụrụ na ịnweelarị ọtụtụ akụrụngwa ịchọrọ ibubata na Terraform, iji aka dee koodu na ibubata nke ọ bụla n'otu oge nwere ike bụrụ nsogbu. Yabụ na ọ bara uru ileba anya na ngwa dị ka Terraforming (http://terraforming.dtan4.net/), nke nwere ike ibubata koodu na steeti ozugbo site na akaụntụ AWS gị.
Refactoring nwere ike inwe ọnyà ya
Na-emegharị ahụ bụ ihe a na-emekarị na mmemme ebe ị na-agbanwe usoro ime nke koodu ahụ mgbe ị na-ahapụ àgwà mpụga na-agbanweghị agbanwe. Nke a bụ iji mee ka koodu ahụ dokwuo anya, dị mma, yana mfe idowe ya. Ntugharị bụ usoro dị mkpa nke kwesịrị iji ya eme ihe mgbe niile. Mana a bịa na Terraform ma ọ bụ ngwaọrụ IaC ọ bụla, ị ga-akpachara anya maka ihe ị na-ekwu site na “omume mpụga” nke mpempe koodu, ma ọ bụghị ya, nsogbu ndị a na-atụghị anya ya ga-ebilite.
Dịka ọmụmaatụ, ụdị ngbanwe a na-ahụkarị bụ iji ndị nwere nghọta dochie aha mgbanwe ma ọ bụ ọrụ. Ọtụtụ IDE arụnyere n'ime nkwado maka nrụpụta ma nwee ike nyegharịa mgbanwe na ọrụ na-akpaghị aka n'oge ọrụ ahụ dum. N'asụsụ mmemme izugbe, nke a bụ usoro dị ntakịrị nke ị nwere ike ị gaghị eche maka ya, mana na Terraform ị ga-akpachara anya na nke a, ma ọ bụghị na ị nwere ike ịpụpụ.
Ọmụmaatụ, modul sava-ụyọkọ nwere ihe ntinye agbanwe cluster_name:
variable "cluster_name" { description = "The name to use for all the cluster resources" type = string }Ka e were ya na ị malitere iji modul a ka ibunye microservice akpọrọ foo. Ka emechara, ịchọrọ ịnyegharị ọrụ gị aha ka ọ bụrụ mmanya. Mgbanwe a nwere ike iyi ihe na-adịghị mkpa, mana n'eziokwu ọ nwere ike ịkpata ọgba aghara ọrụ.
Nke bụ eziokwu bụ na modul sava-ụyọkọ na-eji cluster_name variable n'ọtụtụ akụrụngwa, gụnyere aha njirimara nke otu nchekwa abụọ yana ALB:
resource "aws_lb" "example" { name = var.cluster_name load_balancer_type = "application" subnets = data.aws_subnet_ids.default.ids security_groups = [aws_security_group.alb.id] }Ọ bụrụ na ị gbanwee oke aha na akụrụngwa, Terraform ga-ehichapụ ụdị ochie nke akụrụngwa ahụ wee mepụta nke ọhụrụ n'ọnọdụ ya. Mana ọ bụrụ na akụrụngwa ahụ bụ ALB, n'etiti ihichapụ ya na nbudata ụdị ọhụrụ, ị gaghị enwe usoro iji bugharịa okporo ụzọ gaa na sava weebụ gị. N'otu aka ahụ, ọ bụrụ na ehichapụrụ otu nchekwa, sava gị ga-amalite ịjụ okporo ụzọ netwọk ọ bụla ruo mgbe emepụtara otu ọhụrụ.
Ụdị mmeghari ọzọ ị nwere ike ịmasị gị bụ ịgbanwe ID Terraform. Ka anyị were akụrụngwa aws_security_group dị na modul nkesa-ụyọkọ webụ dịka ọmụmaatụ:
resource "aws_security_group" "instance" { # (...) }A na-akpọ njirimara akụrụngwa a ọmụmaatụ. Were ya na mgbe ị na-emegharị ihe, ị kpebiri ịgbanwe ya ka ọ bụrụ nke a ghọtara karịa (n'echiche gị) aha cluster_instance:
resource "aws_security_group" "cluster_instance" { # (...) }Gịnị ga-eme n'ikpeazụ? Nke ahụ ziri ezi: nkwụsị.
Terraform na-ejikọta NJ akụrụngwa ọ bụla na NJ onye na-eweta igwe ojii. Dịka ọmụmaatụ, ejikọrọ iam_user na ID onye ọrụ AWS IAM, yana aws_intance jikọtara ya na NJ sava AWS EC2. Ọ bụrụ na ị gbanwee ID akụrụngwa (kwuo site na ọmụmaatụ gaa na cluster_instance, dị ka ọ dị na aws_security_group), na Terraform ọ ga-adị ka a ga-asị na ị ehichapụrụ ihe ochie ma tinye nke ọhụrụ. Ọ bụrụ na itinye mgbanwe ndị a, Terraform ga-ehichapụ otu nchekwa ochie wee mepụta nke ọhụrụ, ebe sava gị na-amalite ịjụ okporo ụzọ netwọk ọ bụla.
Nke a bụ isi ihe anọ dị mkpa ị ga-ewepụ na mkparịta ụka a.
- Jiri iwu atụmatụ mgbe niile. Ọ nwere ike ikpughe snags ndị a niile. Jiri nlezianya nyochaa mmepụta ya ma ṅaa ntị n'ọnọdụ ebe Terraform na-ezube ihichapụ akụrụngwa ndị o yikarịrị ka agaghị ehichapụ.
- Mepụta tupu ihichapụ. Ọ bụrụ na ịchọrọ iji dochie akụrụngwa, chee echiche nke ọma ma ọ dị mkpa ka ị mepụta nnọchi tupu ihichapụ nke mbụ. Ọ bụrụ na azịza ya bụ ee, create_before_destroy nwere ike inye aka. Enwere ike nweta otu nsonaazụ ahụ na aka site n'ime usoro abụọ: buru ụzọ tinye ihe ọhụrụ na nhazi ma mee iwu ntinye, wee wepụ ihe ochie ochie na nhazi ma jiri iwu tinye ọzọ.
- Ịgbanwe njirimara chọrọ mgbanwe steeti. Ọ bụrụ na ịchọrọ ịgbanwe NJ ejikọtara na akụrụngwa (dịka ọmụmaatụ, nyegharịa aws_security_group site na ọmụmaatụ gaa na cluster_intance) na-ehichapụghị akụrụngwa yana imepụta ụdị ọhụrụ ya, ị ga-emelite faịlụ steeti Terraform otu a. Emela nke a na aka gị - jiri iwu steeti terraform kama. Mgbe ị na-atụgharị aha njirimara, ị ga-agba ọsọ iwu mv steeti terraform, nke nwere syntax ndị a:
terraform state mv <ORIGINAL_REFERENCE> <NEW_REFERENCE>ORIGINAL_REFERENCE bụ okwu na-ezo aka na akụrụngwa n'ụdị ọ dị ugbu a, na NEW_REFERENCE bụ ebe ịchọrọ ịkwaga ya. Dịka ọmụmaatụ, mgbe ị na-atụgharị aha ndị otu aw_security_group site na ọmụmaatụ gaa na cluster_instance, ị ga-emerịrị iwu a:
$ terraform state mv aws_security_group.instance aws_security_group.cluster_instanceNke a na-agwa Terraform na steeti e jikọtara ya na aws_security_group.intance ga-ejikọta ya na aws_security_group.cluster_instance. Ọ bụrụ na mgbe renaming na-agba ọsọ a iwu terraform atụmatụ egosighi mgbanwe ọ bụla, mgbe ahụ i mere ihe niile n'ụzọ ziri ezi.
- Enweghị ike ịgbanwe ntọala ụfọdụ. Paragraf nke ọtụtụ akụrụngwa anaghị agbanwe agbanwe. Ọ bụrụ n’ịgbalị ịgbanwe ha, Terraform ga-ehichapụ akụrụngwa ochie wee mepụta nke ọhụrụ n’ọnọdụ ya. Ibe akụrụngwa ọ bụla ga-egosipụtakarị ihe na-eme mgbe ị gbanwere otu ntọala, yabụ hụ na ịlele akwụkwọ ahụ. Jiri iwu atụmatụ mgbe niile wee tụlee iji atụmatụ create_before_destroy.
Nkwekọrịta echere na-agbanwe agbanwe... yana nbigharị
API ụfọdụ ndị na-eweta ígwé ojii, dị ka AWS, na-ejikọtaghị ọnụ ma egbuola oge nkwụsi ike. Asynchony pụtara na interface ahụ nwere ike weghachi nzaghachi ozugbo na-echeghị ka emechara ihe a rịọrọ. Nkwekọrịta na-egbu oge pụtara na mgbanwe nwere ike iwepụta oge ịgbasa n'ime usoro; ka nke a na-eme, nzaghachi gị nwere ike ịbụ nke na-ekwekọghị ekwekọ yana dabere na ụdị ụdị data na-aza oku API gị.
Were ya, dịka ọmụmaatụ, na ị na-akpọ API na AWS na-arịọ ya ka o mepụta sava EC2. API ga-eweghachi nzaghachi “na-aga nke ọma” (201 Created) ihe fọrọ nke nta ka ọ bụrụ ozugbo, na-echeghị ka emee ihe nkesa n'onwe ya. Ọ bụrụ na ị na-agbalị ijikọ ya ozugbo, ọ ga-fọrọ nke nta ka ọ daa n'ihi na n'oge ahụ AWS ka na-amalite ihe onwunwe ma ọ bụ, ọzọ, ihe nkesa abanyebeghị. Ọzọkwa, ọ bụrụ na ịmee oku ọzọ iji nweta ozi gbasara ihe nkesa a, ị nwere ike ịnweta njehie (404 Not Found). Ihe bụ na ozi gbasara ihe nkesa EC2 a ka nwere ike ịgbasa na AWS niile tupu ọ dị ebe niile, ị ga-echere sekọnd ole na ole.
Mgbe ọ bụla ị na-eji API asynchronous yana nkwụsi ike umengwụ, ị ga-anwalerịrị arịrịọ gị kwa oge ruo mgbe ihe ahụ gwụchara wee gbasaa na sistemụ. N'ụzọ dị mwute, AWS SDK adịghị enye ngwá ọrụ ọ bụla dị mma maka nke a, na ọrụ Terraform na-enweta ọtụtụ ahụhụ dị ka 6813 (https://github.com/hashicorp/terraform/issues/6813):
$ terraform apply aws_subnet.private-persistence.2: InvalidSubnetID.NotFound: The subnet ID 'subnet-xxxxxxx' does not existN'ikwu ya n'ụzọ ọzọ, ị mepụtara akụrụngwa (dị ka subnet) wee gbalịa nweta ụfọdụ ozi gbasara ya (dị ka ID nke subnet emepụtara ọhụrụ), Terraform enweghị ike ịchọta ya. Ọtụtụ n'ime ahụhụ ndị a (gụnyere 6813) ka edobere, mana ha ka na-etolite site n'oge ruo n'oge, ọkachasị mgbe Terraform na-agbakwunye nkwado maka ụdị akụrụngwa ọhụrụ. Nke a na-ewe iwe, mana n'ọtụtụ ọnọdụ adịghị emerụ ahụ. Mgbe ị na-agba ọsọ terraform tinye ọzọ, ihe niile kwesịrị ịrụ ọrụ, ebe ọ bụ na n'oge a, ozi ahụ agbasaworị na sistemụ.
Nke a bụ akụkụ nke akwụkwọ Evgeniy Brikman gosipụtara .
isi: www.habr.com