{OCI データベース} Base Database Service(Data Guard)

https://oracle-japan.github.io/ocitutorials/basedb/dbcs106-dataguard/#2-data-guard%E3%82%92%E6%A7%8B%E6%88%90%E3%81%99%E3%82%8B%E7%82%BA%E3%81%AE%E5%89%8D%E6%8F%90%E6%9D%A1%E4%BB%B6

https://docs.oracle.com/en-us/iaas/tools/oci-cli/3.46.0/oci_cli_docs/cmdref/db/data-guard-association.html

https://www.oracle.com/jp/database/base-database-service/pricing/
https://speakerdeck.com/oracle4engineer/basedb-tech-detail
https://docs.public.oneportal.content.oci.oraclecloud.com/ja-jp/iaas/dbcs/doc/virtual-machine-db-systems.html

ENTERPRISE_EDITION
19.21
VM.Standard.A1.Flex
LVM
1cpu

-- 1. terraformによるVPC構築

cat <<-'EOF' > variables.tf

locals {
tenancy_ocid = "ocid1.tenancy.oc1..111111111111111111111111111111111111111111111111111111111111"

}

variable "compartment_name" {
description = "compartment_name"
type = string
default = "cmp01"
}

EOF

cat <<-'EOF' > main.tf

terraform {
required_version = ">= 1.0.0, < 2.0.0"
required_providers {
oci = {
source = "hashicorp/oci"
version = "= 5.23.0"
}
}
}

provider "oci" {
tenancy_ocid = local.tenancy_ocid
user_ocid = "ocid1.user.oc1..111111111111111111111111111111111111111111111111111111111111"
private_key_path = "~/.oci/oci_api_key.pem"
fingerprint = "45:ed:22:e6:cc:fd:63:97:12:9d:62:7a:90:12:65:7a"
region = "us-ashburn-1"
}

resource "oci_identity_compartment" "cmp01" {
# Required
compartment_id = local.tenancy_ocid
description = var.compartment_name
name = var.compartment_name

enable_delete = true
}

resource "oci_core_vcn" "vcn01" {
#Required
compartment_id = oci_identity_compartment.cmp01.id

#Optional
cidr_block = "10.0.0.0/16"
display_name = "vcn01"
dns_label = "vcn01"

}

resource "oci_core_internet_gateway" "igw01" {
#Required
compartment_id = oci_identity_compartment.cmp01.id
vcn_id = oci_core_vcn.vcn01.id

#Optional
enabled = true
display_name = "igw01"
}

resource "oci_core_route_table" "rt01" {
#Required
compartment_id = oci_identity_compartment.cmp01.id
vcn_id = oci_core_vcn.vcn01.id

#Optional
display_name = "rt01"
route_rules {
#Required
network_entity_id = oci_core_internet_gateway.igw01.id
#Optional
destination = "0.0.0.0/0"
}

}

resource "oci_core_security_list" "sl01" {
#Required
compartment_id = oci_identity_compartment.cmp01.id
vcn_id = oci_core_vcn.vcn01.id

#Optional
display_name = "sl01"

egress_security_rules {
destination = "0.0.0.0/0"
protocol = "all"
stateless = false
}

ingress_security_rules {
protocol = "6"
source = "0.0.0.0/0"
stateless = false
tcp_options {
max = 22
min = 22
}
}
ingress_security_rules {
protocol = "6"
source = "0.0.0.0/0"
stateless = false
tcp_options {
max = 1521
min = 1521
}
}
}

resource "oci_core_subnet" "subnet01" {
#Required
cidr_block = "10.0.1.0/24"
compartment_id = oci_identity_compartment.cmp01.id
vcn_id = oci_core_vcn.vcn01.id

#Optional

display_name = "subnet01"
dns_label = "subnet01"
route_table_id = oci_core_route_table.rt01.id
security_list_ids = [oci_core_security_list.sl01.id]
}

resource "oci_core_subnet" "subnet02" {
#Required
cidr_block = "10.0.2.0/24"
compartment_id = oci_identity_compartment.cmp01.id
vcn_id = oci_core_vcn.vcn01.id

#Optional

display_name = "subnet02"
dns_label = "subnet02"
route_table_id = oci_core_route_table.rt01.id
security_list_ids = [oci_core_security_list.sl01.id]
}

resource "oci_core_nat_gateway" "ngw01" {
#Required
compartment_id = oci_identity_compartment.cmp01.id
vcn_id = oci_core_vcn.vcn01.id

#Optional
block_traffic = false
display_name = "ngw01"
}

data "oci_core_services" "svc01" {
filter {
name = "name"
values = ["All .* Services In Oracle Services Network"]
regex = true
}
}

resource "oci_core_service_gateway" "sgw01" {
#Required
compartment_id = oci_identity_compartment.cmp01.id
services {
#Required
service_id = data.oci_core_services.svc01.services.0.id
}
vcn_id = oci_core_vcn.vcn01.id

#Optional
display_name = "sgw01"
}

EOF

cat <<-'EOF' > outputs.tf

output "cmp01_id" {
value = oci_identity_compartment.cmp01.id
description = "cmp01.id"
}

output "vcn01_id" {
value = oci_core_vcn.vcn01.id
description = "vcn01.id"
}

output "igw01_id" {
value = oci_core_internet_gateway.igw01.id
description = "igw01.id"
}
output "rt01_id" {
value = oci_core_route_table.rt01.id
description = "rt01.id"
}

output "sl01_id" {
value = oci_core_security_list.sl01.id
description = "sl01.id"
}

output "subnet01_id" {
value = oci_core_subnet.subnet01.id
description = "subnet01.id"
}
output "subnet02_id" {
value = oci_core_subnet.subnet02.id
description = "subnet02.id"
}

output "ngw01_id" {
value = oci_core_nat_gateway.ngw01.id
description = "ngw01.id"
}

output "svc01_id" {
value = data.oci_core_services.svc01.services.0.id
description = "svc01.id"
}

output "sgw01_id" {
value = oci_core_service_gateway.sgw01.id
description = "sgw01.id"
}

EOF

terraform init
terraform fmt
terraform -version

# export TF_VAR_compartment_name=cmp01

terraform plan

terraform apply -auto-approve

# terraform destroy -auto-approve

-- 2. Oracleベース・データベース作成

oci db version list \
--compartment-id ocid1.compartment.oc1..111111111111111111111111111111111111111111111111111111111111

oci db system-shape list \
--compartment-id ocid1.compartment.oc1..111111111111111111111111111111111111111111111111111111111111 \
--query 'sort_by(data, &"name").{"name":"name","shape":"shape","available-core-count":"available-core-count"}' \
--output table

oci db system list \
--compartment-id ocid1.compartment.oc1..111111111111111111111111111111111111111111111111111111111111 \
--query 'data.{"display-name":"display-name","id":"id","lifecycle-state":"lifecycle-state"}' \
--output table

oci db system launch \
--compartment-id ocid1.compartment.oc1..111111111111111111111111111111111111111111111111111111111111 \
--admin-password 'passwordpassword' \
--availability-domain OEIw:US-ASHBURN-AD-3 \
--cpu-core-count 1 \
--database-edition ENTERPRISE_EDITION \
--db-name db11 \
--db-version 19.21.0.0 \
--hostname orcl11 \
--shape VM.Standard.A1.Flex \
--ssh-authorized-keys-file "$HOME/.ssh/id_rsa.pub" \
--subnet-id ocid1.subnet.oc1.iad.111111111111111111111111111111111111111111111111111111111111 \
--auto-backup-enabled false \
--character-set AL32UTF8 \
--cluster-name cluster11 \
--db-unique-name dbu11 \
--db-workload OLTP \
--disk-redundancy NORMAL \
--display-name dbs11 \
--domain subnet01.vcn01.oraclevcn.com \
--initial-data-storage-size-in-gb 256 \
--is-diagnostics-events-enabled false \
--is-health-monitoring-enabled false \
--is-incident-logs-enabled false \
--license-model LICENSE_INCLUDED \
--ncharacter-set AL16UTF16 \
--node-count 1 \
--pdb-name dbu11pdb11 \
--private-ip 10.0.1.11 \
--storage-management LVM \
--storage-performance BALANCED \
--time-zone "Asia/Tokyo"

※
Ampere A1シェイプは、Logical Volume Managerでのみサポートされています。
Ampere A1シェイプは、単一ノードのDBシステムでのみサポートされます。

oci db node list \
--compartment-id ocid1.compartment.oc1..111111111111111111111111111111111111111111111111111111111111 \
--db-system-id ocid1.dbsystem.oc1.iad.111111111111111111111111111111111111111111111111111111111111

oci db db-home list \
--compartment-id ocid1.compartment.oc1..111111111111111111111111111111111111111111111111111111111111 \
--db-system-id ocid1.dbsystem.oc1.iad.111111111111111111111111111111111111111111111111111111111111

oci db database list \
--compartment-id ocid1.compartment.oc1..111111111111111111111111111111111111111111111111111111111111 \
--db-system-id ocid1.dbsystem.oc1.iad.111111111111111111111111111111111111111111111111111111111111

while true ; do
oci db system list \
--compartment-id ocid1.compartment.oc1..111111111111111111111111111111111111111111111111111111111111 \
--query 'data.{"display-name":"display-name","id":"id","lifecycle-state":"lifecycle-state"}' \
--output table ; date; sleep 60
done

oci db system terminate \
--db-system-id ocid1.dbsystem.oc1.iad.111111111111111111111111111111111111111111111111111111111111 \
--force

-- 3. Data Guardの構成

oci db data-guard-association list \
--database-id ocid1.database.oc1.iad.111111111111111111111111111111111111111111111111111111111111 \
--all

oci db data-guard-association create with-new-db-system --generate-full-command-json-input

oci db data-guard-association create with-new-db-system \
--availability-domain OEIw:US-ASHBURN-AD-2 \
--creation-type "" \
--database-admin-password 'passwordpassword' \
--database-id ocid1.database.oc1.iad.111111111111111111111111111111111111111111111111111111111111 \
--display-name dbs22 \
--hostname orcl22 \
--protection-mode MAXIMUM_PERFORMANCE \
--subnet-id ocid1.subnet.oc1.iad.111111111111111111111111111111111111111111111111111111111111 \
--transport-type ASYNC \
--cpu-core-count 1 \
--is-active-data-guard-enabled false \
--is-diagnostics-events-enabled false \
--is-health-monitoring-enabled false \
--is-incident-logs-enabled false \
--license-model LICENSE_INCLUDED \
--node-count 1 \
--private-ip 10.0.1.22 \
--shape VM.Standard.A1.Flex \
--storage-performance BALANCED \
--time-zone "Asia/Tokyo"

※creation-typeは空文字でOK

しばらく待つとスタンバイ側のDBシステムのPROVISIONINGが始まる

-- 4. DB接続

ノードのパブリックIPを確認

ssh -i $HOME/.ssh/id_rsa opc@192.0.2.1
ssh -i $HOME/.ssh/id_rsa opc@192.0.2.2

sudo su -

dbcli describe-system
dbcli list-nodes
dbcli list-dbhomes
dbcli list-databases

dbcli describe-dbhome --dbhomeid 42c0d558-06ee-47a0-af81-ac52510d6674
dbcli describe-database --dbid 26ccca54-b1b2-427b-9812-acdd2a01b74d

su - oracle
sqlplus / as sysdba

show pdbs

select name, db_unique_name, open_mode, database_role from v$database;

-- 5. Data Guardの切り替え

-- 5.1 スイッチオーバー
※プライマリDB側で実行

oci db data-guard-association switchover \
--data-guard-association-id ocid1.dgassociation.oc1.iad.111111111111111111111111111111111111111111111111111111111111 \
--database-admin-password 'passwordpassword' \
--database-id ocid1.database.oc1.iad.111111111111111111111111111111111111111111111111111111111111

-- 5.2 フェイルオーバー

※スタンバイDB側で実行

oci db data-guard-association failover \
--data-guard-association-id ocid1.dgassociation.oc1.iad.111111111111111111111111111111111111111111111111111111111111 \
--database-admin-password 'passwordpassword' \
--database-id ocid1.database.oc1.iad.111111111111111111111111111111111111111111111111111111111111