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ăŤčăăŚăżăăăŽă§ăă ăTerraformăăźă¸ă§ăłă˘ăăăĄăăă¨ĺşćĽăŚăžăăďźă ăăă§č¨ăTerraformăăźă¸ă§ăłăŻä¸č¨ăŽăă¨ăćăăžăă Terraform VersionďźTerraformćŹä˝ăŽăăźă¸ă§ăł ďź Provider Version ăĺ˝çśĺşćĽăŚăăăă¨ăăćšă§ăăă°č˛´éăŞăćéăĺ˛ăăŚăžă§ćŹč¨äşăčŞăĺż
čŚăŻăŞăăă¨ćăăžăă ç§ăŽäťăžă§ăŽçľé¨ă§ăă¨ĺ¤§ä˝ăä¸č¨ăŽăăăŞćăă§ăăăďź GitHub ActionsăAzure PipelinesăŞăŠăŽCDăă¤ăăŠă¤ăłăžăăŻHCP Terraformďźć§Terraform CloudďźăĺŠç¨ăăŚăăĺćă§ăăďź ăăźă¸ă§ăłĺşĺŽďź = ďźăăăŚăľăźăăšăăźăłăćăă奊柏ăăéăč
°ăä¸ăăŚăŽăăźă¸ă§ăłă˘ăăăŻĺš´ä¸ĺç¨ĺşŚă çˇć°ćş˘ăăďźćťčŞďźĺ¸¸ăŤćć°ăăźă¸ă§ăłďź >= ďźă§terraform inităăăĄăă terraform.lock.hcl 㯠.gitignore ăŤćĺ
Ľć¸ăżă ć¸ăăŚăŚčŞĺă§ăăŞăăŞăăăłăăĺšăăŚăăăŞă¨ăŻćăŁă2çšçŽăŻăăăžă§čŚăăăŞăăŁăă§ăă1çšçŽăŻăžăăžăééăăžăăă ăăăŚćźăăŞăĺźăăźă ă1çšçŽăŽçść
ă¨ăŞăŁăŚăăžăăăăăăŻăă ĺăŤăăźă¸ă§ăłă˘ăăăăăăă¨ăăŚăăŞăăă¨ăăăăă§ăŻăŞăăăźă ăĄăłăăźăĺ°äşşć°ăăă¤äťăŤĺŞĺ
庌ăéŤăăżăšăŻăăăćăĺăŁăŚăăŞăçść
ă§ăăă ĺ˝çśăăăŽăžăžćžç˝Žăăă¨ĺéĄăŻçşçăăžăăçšăŤä¸č¨ăŽçšăćŠăžăăăăŠăăăĺéĄă¨ăŞăăžăă Terraform Versionăăăźă¸ă§ăłă˘ăăăăŚäžżĺŠăŞćŠč˝ăăŞăŞăźăšăăăŚă使ăăŞăćĽă
ăimportăăăăŻăŽfor_eachăăĄăăŁăŻăăŁäžżĺŠă§ä˝żăăăăŞĺ ´é˘ăăăăŽă ăăŠä˝żăăă¨ăĺşćĽăŞăâŚă¨ă terraform plan ăăăçĽăăŞă塎ĺăĺşăŚăăăĺĺ ăŻProver VersionăŽă˘ăăă°ăŹăźăă§ăă¤ăŽéăŤăăăŠăĄăźăżăŽć˘ĺŽĺ¤ăĺ¤ăăŁăŚăăăăć°čŚăăŠăĄăźăżăčż˝ĺ ăăăŚăăăă¨ă ä¸č¨ăŽĺéĄăč§ŁćśăăŚăăźă ăĄăłăăźăĺŞé
ăŞTerraformăŠă¤ăăéăăăăŤăžăăŻçĄçăŞăăăźă¸ă§ăłă˘ăăĺşćĽăăăăŞćšéăć¤č¨ăăžăăă Terraformăăźă¸ă§ăłă˘ăăăŽćšé çľčŤ ăžăăŻăăźă¸ă§ăłă˘ăăćšéăŻä¸č¨ăŽéăă¨ăŞăăžăăă ăĄă¸ăŁăźăăźă¸ă§ăłăŻç ´ĺŁçĺ¤ć´ďźBREAKING CHANGEďźăĺťć˘ďźDEPRECATIONSďźăäź´ăĺŻč˝ć§ăăăăăăä¸č¨ă寞ĺżăăä¸ă§ăăźă¸ă§ăłă˘ăăăăăă Release Notesă§ăăźă¸ă§ăłă˘ăăăŤăă役éżăŽčŞżćť ĺ˝ąéżăăăĺ ´ĺăŻăăăźă¸ă§ăłă˘ăăăŽPR (Pull Request) ăŤăłăźă俎ćŁăĺŤăă ăăźă¸ă§ăłă˘ăăăŽăăăŽĺŻžĺżćéăŻä¸ä˝äşćć§ăŽćçĄă¨ĺ˝ąéżĺşŚĺăăăăźă ăĄăłăăźĺ
¨ä˝ăŽăżăšăŻçśćłăčć
ŽăăŚăăźă ăăŠăłăăłă°äź *2 ă§ćąşăăă ăă¤ăăźăăźă¸ă§ăłăŤă¤ăăŚăä¸č¨ă¨ĺć§ăŽĺŻžĺżăăăăä˝ăăăĄă¸ăŁăźăăźă¸ă§ăłă¨ăŻç°ăŞăĺŽćçăŞăăźă¸ă§ăłă˘ăăăľă¤ăŻăŤăč¨ăăă ăăăăăźă¸ă§ăłăŤă¤ăăŚăŻ ĺžćšäşć ć§ăć
äżăăăăăă常ăŤćć°ăŽăăźă¸ă§ăłăçśćăăă 䝼éă§ä¸č¨ăŽćšéăŤčłăŁăčćŻăă誏ćăăžăă čćŻ ĺ
čż°ăăéăćŹč¨äşă§ăŻä¸č¨ăŽďźç¨ŽéĄ *3 ăTerraformăăźă¸ă§ăłăŽĺŻžčąĄă¨ăăŚăăžăă Terraform Version Provider Version 严ćšă¨ăăťăăłăăŁă㯠ăăźă¸ă§ăăłă°ăćĄç¨ăăăŚăăžăăăčć
Žçšăç°ăŞăăŽă§ăăăăć¤č¨ăăžăăă semver.org ăŞăă䝼éăŽé
çŽă§ăŻHashiCorpĺ
ŹĺźăăăĽăĄăłăăŽćçŤ ăŽĺźç¨ăĺăłćĽćŹčŞč¨łăč¨čźăăŚăăžăă ćĽćŹčŞč¨łăŻ Google翝訳 ăŤăŚçżťč¨łăŽä¸ăç§ăŽćšă§ĺż
čŚăŤĺżăăŚčĽĺš˛ăŽäżŽćŁăĺ ăăŚăăăžăă Terraform Version ăžăăŻä¸č¨ăŽ ăăĽăźăăŞă˘ăŤ ăăăăźă¸ă§ăłă˘ăăăŤé˘ăăč¨čźăĺčăŤăăžăăă developer.hashicorp.com HashiCorp uses the format major.minor.patch for Terraform versions. HashiCorp updates Terraform frequently, so it is common to use configuration written for an earlier version of Terraform. New minor and patch versions of Terraform are backward compatible with configuration written for previous versions. Because of this, you can upgrade to a newer minor version of Terraform and still use your existing configurations. However, upgrading your Terraform version can have other consequences, such as requiring you to update your provider versions. Some version updates may refresh your state file version or require configuration file edits to implement new features. Use the required_version setting to control which versions of Terraform will work with your configurations to ensure that updates to your infrastructure are safe and predictable. ćĽćŹčŞč¨łďź HashiCorp ăŻăTerraform ăăźă¸ă§ăłăŽĺ˝˘ĺźă¨ă㌠major.minor.patch ă使ç¨ăăžăă HashiCorp 㯠Terraform ăé ťçšăŤć´ć°ăăăăă䝼ĺăŽăăźă¸ă§ăłăŽ Terraform ç¨ăŤä˝ćăăăć§ćă使ç¨ăăăŽăä¸čŹçă§ăă Terraform ăŽć°ăăăă¤ăăź ăăźă¸ă§ăłă¨ăăă ăăźă¸ă§ăłăŻă䝼ĺăŽăăźă¸ă§ăłç¨ăŤä˝ćăăăć§ćă¨ä¸ä˝äşćć§ăăăăžăă ăăŽăăăTerraform ăŽć°ăăăă¤ăăź ăăźă¸ă§ăłăŤă˘ăăă°ăŹăźăăăŚăăć˘ĺăŽć§ćăĺźăçśă使ç¨ă§ăăžăă ăă ăăTerraform ăŽăăźă¸ă§ăłăă˘ăăă°ăŹăźăăăă¨ăăăăă¤ăăźăŽăăźă¸ă§ăłăŽć´ć°ăĺż
čŚăŤăŞăăŞăŠăĺĽăŽĺ˝ąéżăçăăĺŻč˝ć§ăăăăžăă ä¸é¨ăŽăăźă¸ă§ăłć´ć°ă§ăŻăstateăăĄă¤ăŤăŽăăźă¸ă§ăłăć´ć°ăăăăăć°ăăćŠč˝ăĺŽčŁ
ăăăăăŤć§ćăăĄă¤ăŤăŽçˇ¨éăĺż
čŚăŤăŞăĺ ´ĺăăăăžăă required_version č¨ĺŽă使ç¨ăăŚăć§ćă§ĺä˝ăă Terraform ăŽăăźă¸ă§ăłăĺśĺžĄăăă¤ăłăăŠăšă ăŠăŻ ăăŁă¸ăŽć´ć°ăĺŽĺ
¨ăă¤äşć¸ŹĺŻč˝ă§ăăăă¨ă確čŞăăžăă čŚçšă¨ăăŚăŻä¸č¨ă¨ăŞăăžăă ăă¤ăăźăăźă¸ă§ăłă¨ăăăăăźă¸ă§ăłăŻĺăăźă¸ă§ăłă¨ăŽä¸ä˝äşćăăăă ä˝ăăăĄă¸ăŁăźďźăă¤ăăźăăźă¸ă§ăłăŽă˘ăăă°ăŹăźăăŤă¤ăăŚăŻä¸č¨ĺ˝ąéżăŽĺŻč˝ć§ăăăă Provider VersionăŽă˘ăăă°ăŹăźăăĺż
čŚăŤăŞăă stateăăĄă¤ăŤăŽăăźă¸ă§ăłăć´ć°ăăăă ć°ăăćŠč˝ĺŽčŁ
ăŽăăăŤć§ćăăĄă¤ăŤăŽçˇ¨éăĺż
čŚă¨ăŞăă ä¸č¨ă§ăăĄă¸ăŁăźďźăă¤ăăźăăźă¸ă§ăłăŽă˘ăăă°ăŹăźăăŤă¤ăăŚăŻâŚăă¨ăăŚăăć šć ă¨ăăŚăćĽćŹčŞč¨łä¸ăŽăTerraform ăŽăăźă¸ă§ăłăă˘ăăă°ăŹăźăăăă¨âŚăăŽTerraformăŽăăźă¸ă§ăłă¨ăŻä˝ăŽăă¨ăďźă¨ăăçĺăăăŁăăŽă§ăăăă¤ăăźăăźă¸ă§ăłăŽă˘ăăă°ăŹăź ă㏠ă¤ăăŤä¸č¨ăŽč¨čźăăăăžăăă Terraform v1.X honors the Terraform v1.0 Compatibility Promises, but there are some behavior changes outside of those promises that may affect a small number of users. Specifically, the following updates may require additional upgrade steps: ćĽćŹčŞč¨łďź Terraform v1.X ăŻăTerraform v1.0 ăŽäşćć§ăŤé˘ăăç´ćăéľĺŽăăŚăăžăăăăăăăŽç´ć䝼ĺ¤ăŤăĺ°ć°ăŽăŚăźăśăźăŤĺ˝ąéżăä¸ăăĺŻč˝ć§ăŽăăĺä˝ăŽĺ¤ć´ăăăă¤ăăăăžăăĺ
ˇä˝çăŤăŻă揥ăŽć´ć°ă§ăŻčż˝ĺ ăŽă˘ăăă°ăŹăźăćé ăĺż
čŚăŤăŞăĺ ´ĺăăăăžăă ă¨ăăăă¨ăŻçľĺąăă¤ăăźăăźă¸ă§ăłăŽă˘ăăă°ăŹăźăă§ăĺ°ăŞăăăTerraformăłăźăăŽäżŽćŁăçşçăăĺŻč˝ć§ăăăăŽă§ăăĄă¸ăŁăźďźăă¤ăăźăăźă¸ă§ăłăŽă˘ăăă°ăŹăźăăŤă¤ăăŚăŻâŚăă¨ĺŽçžŠăăžăăă ăžăă ăăĽăźăăŞă˘ăŤ ĺ
ăŽä¸č¨ăŽçšăŤă¤ăăŚăčć
Žăĺż
čŚă¨ăŞăăžăă Terraform will only update the state file version when a new version of Terraform requires a change to the state file's format. Terraform will update the terraform_version whenever you apply a change to your configuration using a newer Terraform version. In general, Terraform will continue to work with a given state file across minor version updates. For major or minor releases, Terraform will update the state file version if required, and give an error if you attempt to run an older version of Terraform using an unsupported state file version. If you were to attempt to apply this configuration again using an older version of Terraform that does not support the current state file version, Terraform returns a state lock error and displays the necessary version. ćĽćŹčŞč¨łďź Terraform ăŻăTerraform ăŽć°ăăăăźă¸ă§ăłă§stateăăĄă¤ăŤăŽĺ˝˘ĺźăŽĺ¤ć´ăĺż
čŚăŞĺ ´ĺăŤăŽăżăstateăăĄă¤ăŤăŽ version ăć´ć°ăăžăă ć°ăă Terraform ăăźă¸ă§ăłă使ç¨ăăŚć§ćăŤĺ¤ć´ăéŠç¨ăăăăłăŤăTerraform 㯠terraform_version ăć´ć°ăăžăă ä¸čŹăŤăTerraform ăŻăăă¤ăăź ăăźă¸ă§ăłăć´ć°ăăăŚăăćĺŽăăăstateăăĄă¤ăŤăĺźăçśă使ç¨ăăžăă ăĄă¸ăŁăź ăŞăŞăźăšăžăăŻăă¤ăăź ăŞăŞăźăšăŽĺ ´ĺăTerraform ăŻĺż
čŚăŤĺżăăŚstateăăĄă¤ăŤăŽăăźă¸ă§ăłăć´ć°ăăăľăăźăăăăŚăăŞăstateăăĄă¤ăŤ ăăźă¸ă§ăłă使ç¨ăăŚĺ¤ăăăźă¸ă§ăłăŽ Terraform ăĺŽčĄăăăă¨ăăă¨ă¨ăŠăźăçşçăăžăă çžĺ¨ăŽstateăăĄă¤ăŤăŽăăźă¸ă§ăłăăľăăźăăăŚăăŞăĺ¤ăăăźă¸ă§ăłăŽ Terraform ă使ç¨ăăŚăăŽć§ćăĺ庌éŠç¨ăăăă¨ăăă¨ăTerraform ăŻçść
ăă㯠ă¨ăŠăźăčżăăĺż
čŚăŞăăźă¸ă§ăłă襨示ăăžăă äžăă° 1.11 ăŽTerraformă§Plan/ApplyĺŽčĄăăĺ ´ĺăĺ ´ĺăŤăăŁăŚăŻtfstateĺ
ăŽăăźă¸ă§ăłă "terraform_version": â1.11.Xâ ă¨ăŞăăă 1.10 ăŽTerraform Plan/ApplyăĺŽčĄăăăă¨ăŠăźă¨ăŞăĺŻč˝ć§ăăăăă¨ăăăă¨ă§ăăďźćăăďź äťĽä¸ăŽăă¨ăăăĄă¸ăŁăźăăźă¸ă§ăłăăă¤ăăźăăźă¸ă§ăłăŻĺşĺŽă¨ăăŚĺŽćçăŤă˘ăăă°ăŹăźăăăă¨ăăçľčŤăŤčłăăžăăă Provider Version Provider VersionăŤă¤ăăŚăŻćŁç´čŞżăšăăžă§ăăŞăâŚăă¨ăăć°ăăăžăăăĺżľăŽăăăĄăăă¨čŞżăšăŚć¤č¨ăăžăăă ăžăăŻä¸č¨ăŽ ăăĽăźăăŞă˘ăŤ ă§Versionăĺśç´ăăŞăĺ ´ĺăŽĺ˝ąéżăč¨čźăăăŚăăžăăă developer.hashicorp.com If you do not scope provider version appropriately, Terraform will download the latest provider version that fulfills the version constraint. This may lead to unexpected infrastructure changes. By specifying carefully scoped provider versions and using the dependency lock file, you can ensure Terraform is using the correct provider version so your configuration is applied consistently. ćĽćŹčŞč¨łďź ăăăă¤ăăźăŽăăźă¸ă§ăłăéŠĺăŤăšăłăźăăăŞăă¨ăTerraform ăŻăăźă¸ă§ăłĺśç´ăćşăăćć°ăŽăăăă¤ăăź ăăźă¸ă§ăłăăăŚăłăăźăăăžăă ăăăŤăăăäşćăăŞăă¤ăłăăŠăšă ăŠăŻ ăăŁăŽĺ¤ć´ăçşçăăĺŻč˝ć§ăăăăžăă ăăăă¤ăăźăŽăăźă¸ă§ăłăć
éăŤćĺŽăăäžĺé˘äżăă㯠ăăĄă¤ăŤă使ç¨ăăăă¨ă§ăTerraform ăćŁăăăăăă¤ăăź ăăźă¸ă§ăłă使ç¨ăăŚăăăă¨ă確čŞăăć§ćăä¸č˛ŤăăŚéŠç¨ăăăăăăŤăăăă¨ăă§ăăžăă äşćăăŞăă¤ăłăăŠăšă ăŠăŻ ăăŁăŽĺ¤ć´ăçşçăăĺŻč˝ć§ăăăăžăâŚćăăăă§ăăă ăžăăStyle Guideă§ăŻăĄă¸ăŁăźăăźă¸ă§ăłăăă¤ăăźăăźă¸ă§ăłăŽĺşĺŽăć¨ĺĽ¨ăăăŚăăžăăă developer.hashicorp.com To prevent providers and modules upgrades from introducing unintentional changes to your infrastructure, use version pinning. Specify provider versions using the required_providers block. Terraform version constraints support a range of accepted versions. Pin modules to a specific major and minor version as shown in the example below to ensure stability. You can use looser restrictions if you are certain that the module does not introduce breaking changes outside of major version updates. ćĽćŹčŞč¨łďź ăăăă¤ăăźă¨ă˘ă¸ăĽăźăŤăŽă˘ăăă°ăŹăźăăŤăăŁăŚă¤ăłăăŠăšă ăŠăŻ ăăŁăŤćĺłăăŞăĺ¤ć´ăĺ ăăăăăŽăé˛ăăŤăŻăăăźă¸ă§ăłĺşĺŽă使ç¨ăăžăă required_providers ăăăăŻă使ç¨ăăŚăăăă¤ăăźăŽăăźă¸ă§ăłăćĺŽăăžăă Terraform ăŽăăźă¸ă§ăłĺśç´ăŻă訹厚ăăăăăžăăžăŞăăźă¸ă§ăłăăľăăźăăăžăă ĺŽĺŽć§ă確äżăăăŤăŻă䝼ä¸ăŽäžăŤç¤şăăăăŤăă˘ă¸ăĽăźăŤăçšĺŽăŽăĄă¸ăŁăź ăăźă¸ă§ăłă¨ăă¤ăăź ăăźă¸ă§ăłăŤĺşĺŽăăžăă ăĄă¸ăŁăź ăăźă¸ă§ăłăŽć´ć°äťĽĺ¤ă§ă˘ă¸ăĽăźăŤăŤé大ăŞĺ¤ć´ăĺ°ĺ
ĽăăăŞăăă¨ă確ĺŽăŞĺ ´ĺăŻăăă硊ăăăŞĺśéă使ç¨ă§ăăžăă ćĺžăŤTerraform ProviderăŤçťé˛ăăăPluginăŽéçşăăăĽăĄăłăăŤăŻăăźă¸ă§ăłçŽĄçăŽăăšăă ăŠăŻ ăăŁăšăŤă¤ăăŚăŽč¨čźăăăăžăăă developer.hashicorp.com Observing that Terraform plugins are in many ways analogous to shared libraries in a programming language, we adopted a version numbering scheme that follows the guidelines of Semantic Versioning . In summary, this means that with a version number of the form MAJOR . MINOR . PATCH , the following meanings apply: Increasing only the patch number suggests that the release includes only bug fixes, and is intended to be functionally equivalent. Increasing the minor number suggests that new features have been added but that existing functionality remains broadly compatible. Increasing the major number indicates that significant breaking changes have been made, and thus extra care or attention is required during an upgrade. To allow practitioners sufficient time and opportunity to upgrade to the latest version of the provider, we recommend releasing major versions no more than once per year. Releasing major versions more frequently could present a barrier to adoption due to the effort required to upgrade. Version numbers above 1.0.0  signify stronger compatibility guarantees, based on the rules above. Each increasing level can also contain changes of the lower level (e.g. MINOR  can contain PATCH  changes). ćĽćŹčŞč¨łďź Terraform ăăŠă°ă¤ăł ăŻĺ¤ăăŽçšă§ ăăă°ăŠăăłă°č¨čŞ ăŽĺ
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Ľ ăŤçśăăŚăĺ°ăă ă桹ĺ ăă㌠Ingress ăŽé¨ĺăŤă¤ăăŚć¸ăăŚăżăăă¨ćăăžăă Amazon EKS ㎠Ingress ăčăă ALBC + Istio ĺ
¨ä˝ć§ć ć§çŻăăŚăżă - ALBăŽä˝ć - Istio ăłă˘ăłăłăăźăăłăăŽă¤ăłăšăăźăŤ Gateway ăŞă˝ăźăšăŽä˝ć Virtual Service ăŽä˝ć ĺŽéăŤăăŁăŚăżăŚ ăăă㍠Amazon EKS ㎠Ingress ăčăă â ăŻăŠăŚă ăăłăăźăćäžăăăăăźă¸ă Kubernetes ăăăă¨ăăăă¨ăŻă Ingress ăčăăă¨ăăăă¨ă â ăăŽăăăŞč¨čăăĺ大ăŞăĺ
äşşăŽćšăŤčăăăă¨ăăăăžăăďźăŞăă§ăďź EKS ăŽć§çŻăŤă¤ăăŚăĺ˝ĺ㯠AWS Load Balancer Controller ăŽăżĺŠç¨ăăŚé˛ăăŚăăžăăăăăŽĺžă2023ĺš´ćŤé ㍠Kubernetes ㎠Gateway API ă GA ăăăăă¨ăăăŁăŚăăăĄăăŤčľăĺăăă¨čăăŚăăććăăăăĺŽé Ingress ăŽăă¨ăčăăŚăăćéăŻéˇăăŁăăăăŞć°ăăăžăă ăăăă AWS ă§ăŽ Gateway API ĺŽčŁ
ă§ăăă VPC Lattice ăŻă ăŻăŠăšăż ăźĺ壍ăŽé俥ăŤä˝żăăă¨ă丝ăăç¨éă¨ăăŚăăăĺ¤é¨ăă㎠ăăŠăăŁă㯠ăĺăă Ingress ă¨ăăŚăŻć´ťç¨ă§ăăŞăăăă§ăăă(2024ĺš´3ćçžĺ¨) *1 ĺäşşçăŤăŻăGKE ăćäžăăŚăăăăăŞăăźăŤéăŽč˛Źäťťăć確ăŤĺé˘ăăăć§ćăŤăăăăŁăăŽă§ăăă AWS ă§ăŻăĄăăŁă¨ăžă ćŠăâŚă¨ăăăă¨ă§ăäťăŽć掾ăčăăăă¨ăŤăĺčăžă§ăŤă䝼ä¸ă GKE ăŽćäžăăŚăăăăŽă§ăăă¨ăŚăĺăăăăăăŞăźăŁăŚćăăžăă ĺźç¨ĺ
: https://cloud.google.com/kubernetes-engine/docs/concepts/gateway-api?hl=ja#platform-managed_gateway_per_namespace cloud.google.com ăăŚăăăăŞç´ä˝ć˛ćăçľăŚăćçľçăŤăŻ AWS Load Balancer Controller (äťĽä¸ ALBC) ăĺŠç¨ăăăăă§ăćčťăŞ ăăŠăăŁă㯠ăłăł ăăăźăŤ ăĺŻč˝ă¨ăŞă Istio ăĺŠç¨ăăăă¨ăŤăŞăăžăăăĺčż°ăŽă¨ăăăALBC ăŻćĺăăĺŠç¨ăăŚăŻăăăŽă§ăăăăă¤ăŻăăľăźăăšăčż˝ĺ ăăăé㍠Namespace ăŽĺĺ˛ăčĄăă¨ă Ingress ăŽć¨ćşäťć§ă§ăŻ Namespace ă表ăă ăŤăźăăŁăłă°č¨ĺŽăĺşćĽăžăăăăŞăŽă§ăăăă Ingress ă Namespace ăă¨ăŤä˝ćăăăăăŞăăŚăă¨ăăăă¨ăALBC ăŤăăŁăŚ Ingress ĺä˝ă§ ALB ăä˝ćăăăŚăăžăăžăă e.g. Ingress ăăăă§ăšă apiVersion : networking.k8s.io/v1 kind : Ingress metadata : # ăăă§ćĺŽăă namespace ĺ
ăŽăľăźăăšăŽăżăăšăăźăšăŤăźăăŁăłă°ăŤćĺŽĺŻč˝ namespace : service-A name : service-A-ingress annotations : alb.ingress.kubernetes.io/scheme : internet-facing alb.ingress.kubernetes.io/target-type : ip alb.ingress.kubernetes.io/healthcheck-path : / alb.ingress.kubernetes.io/wafv2-acl-arn : arn:aws:wafv2:ap-northeast-1:123456789012:regional/webacl/xxxx-web-acl-ap-northeast-1-dev/xxxx-xxxx spec : # ăăă§ alb ă¨ĺŽçžŠăăăă¨ă§ ALB ăä˝ćăăă ingressClassName : alb rules : - http : paths : - path : / pathType : Prefix backend : service : name : service-A port : number : 80 ăăăăŁăčćŻăăăăŞăăăăăăŤäťĺžăŽăľăźăăšćĄĺ¤§ăčŚćŽăăă¨ăăăľăźăăšéé俥ăçşçăăă§ăăăăăăăŽăżă¤ăăłă°ă§ Service Mesh ăŽćŠćľăĺăăăăăăăŤăăŚăăăŽăăăšăă ă¨čăăIstio ăĺ°ĺ
Ľăăăă¨ăŤăăžăăăIstio ăŤăăççąăŻăéĺťăŤéç¨çľé¨ăŽăăăĄăłăăźăăăăă ćčżčŞĺŽčŠŚé¨ăĺşăă ă ăăăĄăŻăăšăżăłăăźă ăŤăŞăŁăŚăăă¨ćăăŚăăăŽăăăăžăăăćĺžăŻăSRE ă¨ăăŚăäşăăŤăăă°ăŁăŚăăăďźăă¨äźčŠąăăŞăăćąşăăăŽăčŚăăŚăăžăă(čłĺ
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ă¨ćăăŚăăăŁăŚăăăćĽă
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¨ä˝ć§ć ç°ĄĺăŞć§ćĺłăŻäťĽä¸ăŽă¨ăăă§ăă ALBC + Istio ć§ćĺł ĺ
¨ä˝ć§ćă¨ăăŚăŻăALB Ingress ăă Istio Ingress Gatewy ăăżăźă˛ăăă¨ăăŚć§ćăăăăăžă§ă Gateway ăŹă¤ă¤ăźă¨ăăŚĺŽçžŠăăŚăă˘ăăŞăąăźăˇă§ăłă¸ăŽăŤăźăăŁăłă°ăŤăŻă Istio Virtual Service ă使ç¨ăăŚăăžăă Virtual Service ăăĺăă¤ăŻăăľăźăăšăŽ Service ăŤăŤăźăăŁăłă°ăăăăă¨ă§ăä¸ă¤ăŽ ALB ăăĺăľăźăăšă¸ćľăăŚăăăăăŞć§ćă¨ăŞăăžăăă䝼ä¸ăŽăăăĽăĄăłăăŤăă Shared gateway ăŽăăżăźăłă§ăă istio.io ăŻăă㯠Istio Ingress Gateway ăăăŽăžăžăăăă¸ă§ăăłă°ăăăăă Service type ă LoadBalancer ăŤăŞăŁăŚăăă Internal 㪠NLB ăĺşćĽăŚăăžăăâŚăăăăĄăłăăźăăăćĺąąăăăďž
ďžďžďžď˝˝ď˝śď˝şďžăă¨ăăăăăććăăăă ăăćĽăă§ Istio Ingress Gateway ăĺŽçžŠăăŚăă Argo CD ㎠values.yaml ăŤäťĽä¸ăčż˝č¨âŚďźćă¤ăšăăăŽăŻé źăă䝲éă§ăăă # ä¸é¨ćç˛... replicaCount : 2 autoscaling : enabled : true minReplicas : 2 maxReplicas : 4 # ćĽăă§čż˝č¨ăŁăŁ service : type : NodePort č˛ă
調ăšăŚăăă¨ăă AWS ĺ
ŹĺźăŽăăă°ăé常ăŤĺčăŤăŞăăžăăăŽă§ăăăĄăă§ç´šäťăăăă¨ćăăžăă aws.amazon.com aws.amazon.com ć§çŻăăŚăżă - ALBăŽä˝ć - ă ăăśç´°ăăăŞăŁăŚăăžăăŽă§ăăăĺŽé㎠ăăăă§ăšă ăăćç˛ăă¤ă¤ăçśăăć¸ăăŚăżăžăăăžă ALBC ㍠ALB ăä˝ăŁăŚăăăăăă䝼ä¸ăŽ ăăăă§ăšă ăä˝ćăăžăăăŞăăALBC čŞä˝ăŻ Argo CD + Helm ă§ă¤ăłăšăăźăŤăăŚăăžăă(ä¸é¨ćç˛ăăŚăăăăăăăŽăžăžä˝żăă¨ĺăăŞăĺŻč˝ć§ăăăăžă) # alb-istio-ingress-gateway.yaml apiVersion : networking.k8s.io/v1 kind : Ingress metadata : name : alb-istio-ingress-gateway namespace : istio-ingress annotations : # ä¸é¨ćç˛... alb.ingress.kubernetes.io/group.name : istio-ingressgateway # istio ingress gateway service ăăżăźă˛ăăă¨ăăŚăăŤăšăă§ăăŻăĺŽć˝ alb.ingress.kubernetes.io/healthcheck-path : /healthz/ready alb.ingress.kubernetes.io/healthcheck-port : "15021" alb.ingress.kubernetes.io/healthcheck-protocol : HTTP alb.ingress.kubernetes.io/scheme : internet-facing alb.ingress.kubernetes.io/target-type : ip alb.ingress.kubernetes.io/certificate-arn : arn:aws:acm:ap-northeast-1:123456789012:certificate/xxxxxxxx-xxxx-xxxxxxxxx alb.ingress.kubernetes.io/ssl-policy : ELBSecurityPolicy-TLS13-1-2-2021-06 alb.ingress.kubernetes.io/wafv2-acl-arn : arn:aws:wafv2:ap-northeast-1:123456789012:regional/webacl/xxx-wafv2-web-acl-ap-northeast-1/xxxxxxxx-xxxx-xxxxxxxxx spec : ingressClassName : alb rules : - http : paths : - path : /* pathType : ImplementationSpecific backend : service : name : istio-ingressgateway port : number : 80 Istio ăłă˘ ăłăłăăźăăłă ăŽă¤ăłăšăăźăŤ 揥ăŤăIstio ăŽăłă˘ ăłăłăăźăăłă ăă¤ăłăšăăźăŤăăžăăĺ
ˇä˝çăŤăŻäťĽä¸ăŽ3税éĄă§ăă istio-base istiod istio-ingress ăăăă Argo CD + Helm ă§ĺ°ĺ
Ľăăžăă注ćçšă¨ăăŚăŻă istio-ingress ăŽăăăă¤ć㍠istio-base 㨠istiod ă確ĺŽăŤăăăă¤ăăăŚăăŞăă¨ă¨ăŠăźăŤăŞăăă¨ăăăăă¨ăăă¨ăăă§ăăăăăArgo CD ă§ 3税éĄăŽ ăłăłăăźăăłă ăä¸ć°ăŤ AutoSync ăăăŚăăžăăäžĺé˘äżăčć
Žăăăă䝼ä¸ăŽ Issues ăŤăăăăăŤć´žćăŤčť˘ăłăžăăă github.com ăăă§ Istio Ingress Gateway ăŽăľăźăăšăä˝ćăăăžăăăăŽăľăźăăšăĺčż°ăă Ingress ă§ćĺŽăăŚăă形ă¨ăŞăăžăă( name: istio-ingressgateway ăŽă¨ăăă§ă) Gateway ăŞă˝ăźăšăŽä˝ć çśă㌠Gateway ăŞă˝ăźăšăä˝ćăăžăăăă㯠Helm ăĺŠç¨ăăă䝼ä¸ăŽăă㪠ăăăă§ăšă ăĺŽçžŠăăžăăăăă§ăŻ Istio Ingress Gateway ㎠Pod 㨠ăă¤ăłăăŁăłă° ăăăăăă selector ăŤăŚ istio: ingressgateway ăĺŽçžŠăăŚăăăžăă # sample-gateway.yaml apiVersion : networking.istio.io/v1beta1 kind : Gateway metadata : name : sample-gateway namespace : istio-ingress spec : selector : istio : ingressgateway servers : - hosts : - "*" port : name : http number : 80 protocol : HTTP ä˝ćăăăŞă˝ăźăšăŻ kubectl get gateway.networking.istio.io -n istio-ingress ăŽăłăăłăă§čŚă¤ăăăă¨ăĺŻč˝ă§ăă揥㯠Virtual Service ㍠ăăŠăăŁă㯠ă蝢éăăăŚăăĺż
čŚăăăăžăăă䝼ä¸ăŽăăăĽăĄăłăăŤăč¨čźăăăŚăăăăăŤăVirtual Service ă Gateway ăŤăă¤ăłăăăăăă¨ă§ă ăăŠăăŁă㯠蝢éăĺśĺžĄăăăă¨ăĺŻč˝ăŤăŞăŁăŚăăžăă istio.io The Gateway specification above describes the L4-L6 properties of a load balancer. A VirtualService can then be bound to a gateway to control the forwarding of traffic arriving at a particular host or gateway port. ĺŽéăŽć§çŻćăŤăŻăăăăžă§ć§çŻăăăŽăŤçľć§ăŞćéăćăăŁăŚăăžăăžăă⌠Gateway ăŽă¨ăăăçč§ŁăéŁăăăăăăĽăĄăłăăčŞăă§ăăŚăă¤ăă¤ăăăŁăăćĽăŞăăŁăăŽă§ăVirtual Service ăžă§ĺŽéăŤä˝ăŁăŚăăžăă Kiali ă使ăŁăŚĺŻčŚĺăăŞăăçč§ŁăăŚăăăžăăăĺŽéăŤćăĺăăăŚä˝ăŁăŚăăžăăŽă大ĺă§ăăâŚďź ă¨ăăăăă§ăăăăžă§ă§ă䝼ä¸ăŽăŞăŹăłă¸ć ĺ
ăžă§ăä˝ćăăăžăăăćĺžăŻ Virtual Service ăŽä˝ćă§ăă Gateway Layer Virtual Service ăŽä˝ć Virtual Service ăŻĺă˘ăăŞăąăźăˇă§ăłç¨ ăăăă§ăšă ăŽćšăŤĺŽçžŠăăŚăăžăăĺ
ˇä˝çăŤăŻäťĽä¸ăŽăăăŞćăă§ăă apiVersion : networking.istio.io/v1alpha3 kind : VirtualService metadata : name : service-A-virtual-service namespace : service-A spec : hosts : - "*" gateways : # ăăă§GatewayăćĺŽ - istio-ingress/sample-gateway http : - match : - uri : prefix : /api/v1/service-A route : - destination : host : service-A.service-A.svc.cluster.local port : number : 80 ĺčż°ăŽă¨ăăăVirtual Service ă Gateway ăŤăă¤ăłăăăĺż
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