[9.0] [APM][UI] Sort environment dropdown alphabetically (#217710) (#218093)

# Backport

This will backport the following commits from `main` to `9.0`:
- [[APM][UI] Sort environment dropdown alphabetically
(#217710)](https://github.com/elastic/kibana/pull/217710)

<!--- Backport version: 8.9.8 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

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Sort environment dropdown alphabetically (#217710)\n\nCloses
#217814\n\n### Summary\n\nSort environment list
alphabetically.\n\n|Before|After|\n|-|-|\n|<img width=\"1724\"
alt=\"Screenshot 2025-04-10 at 12 01
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Sort environment dropdown alphabetically (#217710)\n\nCloses
#217814\n\n### Summary\n\nSort environment list
alphabetically.\n\n|Before|After|\n|-|-|\n|<img width=\"1724\"
alt=\"Screenshot 2025-04-10 at 12 01
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[APM][UI] Sort environment dropdown alphabetically (#217710)
(#217880)\n\n# Backport\n\nThis will backport the following commits from
`main` to `8.18`:\n- [[APM][UI] Sort environment dropdown
alphabetically\n(#217710)](https://github.com/elastic/kibana/pull/217710)\n\n<!---
Backport version: 9.6.6 -->\n\n### Questions ?\nPlease refer to the
[Backport
tool\ndocumentation](https://github.com/sorenlouv/backport)\n\n<!--BACKPORT
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environment dropdown alphabetically
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environment dropdown alphabetically
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environment dropdown alphabetically
(#217710)\\n\\nCloses\n#217814\\n\\n### Summary\\n\\nSort environment
list\nalphabetically.\\n\\n|Before|After|\\n|-|-|\\n|<img
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kibanamachine
<42973632+kibanamachine@users.noreply.github.com>"}},{"branch":"main","label":"v9.1.0","labelRegex":"^v9.1.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/217710","number":217710,"mergeCommit":{"message":"[APM][UI]
Sort environment dropdown alphabetically (#217710)\n\nCloses
#217814\n\n### Summary\n\nSort environment list
alphabetically.\n\n|Before|After|\n|-|-|\n|<img width=\"1724\"
alt=\"Screenshot 2025-04-10 at 12 01
15\"\nsrc=\"https://github.com/user-attachments/assets/53f0b66d-146a-45d9-b4e3-25bde350a263\"\n/>|<img
width=\"1722\" alt=\"Screenshot 2025-04-10 at 11 58
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[APM][UI] Sort environment dropdown alphabetically (#217710)
(#217878)\n\n# Backport\n\nThis will backport the following commits from
`main` to `8.x`:\n- [[APM][UI] Sort environment dropdown
alphabetically\n(#217710)](https://github.com/elastic/kibana/pull/217710)\n\n<!---
Backport version: 9.6.6 -->\n\n### Questions ?\nPlease refer to the
[Backport
tool\ndocumentation](https://github.com/sorenlouv/backport)\n\n<!--BACKPORT
[{\"author\":{\"name\":\"Milosz\nMarcinkowski\",\"email\":\"38698566+miloszmarcinkowski@users.noreply.github.com\"},\"sourceCommit\":{\"committedDate\":\"2025-04-10T15:38:20Z\",\"message\":\"[APM][UI]\nSort
environment dropdown alphabetically
(#217710)\\n\\nCloses\n#217814\\n\\n### Summary\\n\\nSort environment
list\nalphabetically.\\n\\n|Before|After|\\n|-|-|\\n|<img
width=\\\"1724\\\"\nalt=\\\"Screenshot 2025-04-10 at 12
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environment
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environment dropdown alphabetically
(#217710)\\n\\nCloses\n#217814\\n\\n### Summary\\n\\nSort environment
list\nalphabetically.\\n\\n|Before|After|\\n|-|-|\\n|<img
width=\\\"1724\\\"\nalt=\\\"Screenshot 2025-04-10 at 12
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alt=\\\"Screenshot 2025-04-10 at 11
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environment dropdown alphabetically
(#217710)\\n\\nCloses\n#217814\\n\\n### Summary\\n\\nSort environment
list\nalphabetically.\\n\\n|Before|After|\\n|-|-|\\n|<img
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01\n15\\\"\\nsrc=\\\"https://github.com/user-attachments/assets/53f0b66d-146a-45d9-b4e3-25bde350a263\\\"\\n/>|<img\nwidth=\\\"1722\\\"
alt=\\\"Screenshot 2025-04-10 at 11
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kibanamachine
<42973632+kibanamachine@users.noreply.github.com>"}},{"branch":"8.17","label":"v8.17.5","labelRegex":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"url":"https://github.com/elastic/kibana/pull/217881","number":217881,"state":"MERGED","mergeCommit":{"sha":"0fe80714cb1d0b7f73543f303c7224aa66741605","message":"[8.17]
[APM][UI] Sort environment dropdown alphabetically (#217710)
(#217881)\n\n# Backport\n\nThis will backport the following commits from
`main` to `8.17`:\n- [[APM][UI] Sort environment dropdown
alphabetically\n(#217710)](https://github.com/elastic/kibana/pull/217710)\n\n<!---
Backport version: 9.6.6 -->\n\n### Questions ?\nPlease refer to the
[Backport
tool\ndocumentation](https://github.com/sorenlouv/backport)\n\n<!--BACKPORT
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environment dropdown alphabetically
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environment
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environment dropdown alphabetically
(#217710)\\n\\nCloses\n#217814\\n\\n### Summary\\n\\nSort environment
list\nalphabetically.\\n\\n|Before|After|\\n|-|-|\\n|<img
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alt=\\\"Screenshot 2025-04-10 at 11
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environment dropdown alphabetically
(#217710)\\n\\nCloses\n#217814\\n\\n### Summary\\n\\nSort environment
list\nalphabetically.\\n\\n|Before|After|\\n|-|-|\\n|<img
width=\\\"1724\\\"\nalt=\\\"Screenshot 2025-04-10 at 12
01\n15\\\"\\nsrc=\\\"https://github.com/user-attachments/assets/53f0b66d-146a-45d9-b4e3-25bde350a263\\\"\\n/>|<img\nwidth=\\\"1722\\\"
alt=\\\"Screenshot 2025-04-10 at 11
58\n27\\\"\\nsrc=\\\"https://github.com/user-attachments/assets/91315d23-801c-4a16-8688-c43d60c389c8\\\"\\n/>|\",\"sha\":\"23cbaa6d55de4e331ce180f6857db94ca11c209a\"}}]}]\nBACKPORT-->\n\n---------\n\nCo-authored-by:
kibanamachine
<42973632+kibanamachine@users.noreply.github.com>"}},{"branch":"8.16","label":"v8.16.7","labelRegex":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"url":"https://github.com/elastic/kibana/pull/217883","number":217883,"state":"MERGED","mergeCommit":{"sha":"8ea1340a099d0db7aec11f9f0849cd11ea25a589","message":"[8.16]
[APM][UI] Sort environment dropdown alphabetically (#217710)
(#217883)\n\n# Backport\n\nThis will backport the following commits from
`main` to `8.16`:\n- [[APM][UI] Sort environment dropdown
alphabetically\n(#217710)](https://github.com/elastic/kibana/pull/217710)\n\n<!---
Backport version: 9.6.6 -->\n\n### Questions ?\nPlease refer to the
[Backport
tool\ndocumentation](https://github.com/sorenlouv/backport)\n\n<!--BACKPORT
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environment dropdown alphabetically
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environment
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environment dropdown alphabetically
(#217710)\\n\\nCloses\n#217814\\n\\n### Summary\\n\\nSort environment
list\nalphabetically.\\n\\n|Before|After|\\n|-|-|\\n|<img
width=\\\"1724\\\"\nalt=\\\"Screenshot 2025-04-10 at 12
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environment dropdown alphabetically
(#217710)\\n\\nCloses\n#217814\\n\\n### Summary\\n\\nSort environment
list\nalphabetically.\\n\\n|Before|After|\\n|-|-|\\n|<img
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BACKPORT-->

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>

x-pack/solutions/observability/plugins/apm/server/routes/environments/get_environments.ts

@@ -55,6 +55,7 @@ export async function getEnvironments({
           terms: {
             field: SERVICE_ENVIRONMENT,
             missing: ENVIRONMENT_NOT_DEFINED.value,
+            order: { _key: 'asc' as const },
             size,
           },
         },

x-pack/solutions/observability/plugins/apm/server/routes/suggestions/get_suggestions_with_terms_aggregation.ts

@@ -52,7 +52,11 @@ export async function getSuggestionsWithTermsAggregation({
       },
       aggs: {
         items: {
-          terms: { field: fieldName, size },
+          terms: {
+            field: fieldName,
+            size,
+            order: { _key: 'asc' as const },
+          },
         },
       },
     },

x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/environment/get_environment.spec.ts

@@ -104,10 +104,10 @@ export default function environmentsAPITests({ getService }: DeploymentAgnosticF
         expect(body.environments.length).to.be.equal(4);
         expectSnapshot(body.environments).toMatchInline(`
             Array [
+              "custom-go-environment",
               "development",
               "production",
               "staging",
-              "custom-go-environment",
             ]
           `);
       });