Add tag flavor

action.yml

@@ -49,6 +49,12 @@ inputs:
     description: 'GitHub Token as provided by secrets'
     default: ${{ github.token }}
     required: true
+  flavor:
+    description: 'Container flavor, with no leading dash, like "alpine" or "debian"'
+    required: false
+  main-flavor:
+    description: 'Create tags without flavor as well'
+    required: false
 
 outputs:
   version:

src/context.ts

@@ -13,6 +13,8 @@ export interface Inputs {
   sepTags: string;
   sepLabels: string;
   githubToken: string;
+  flavor: string;
+  mainFlavor: boolean;
 }
 
 export function getInputs(): Inputs {
@@ -28,7 +30,9 @@ export function getInputs(): Inputs {
     tagSchedule: core.getInput('tag-schedule') || 'nightly',
     sepTags: core.getInput('sep-tags') || `\n`,
     sepLabels: core.getInput('sep-labels') || `\n`,
-    githubToken: core.getInput('github-token')
+    githubToken: core.getInput('github-token'),
+    flavor: core.getInput('flavor') || '',
+    mainFlavor: /true/i.test(core.getInput('main-flavor') || 'true')
   };
 }
 

src/meta.ts

@@ -92,17 +92,25 @@ export class Meta {
       return [];
     }
 
+    let hasFlavor = this.inputs.flavor !== '';
+    let flavor = this.inputs.flavor;
+    let main = !hasFlavor || this.inputs.mainFlavor;
+
     let tags: Array<string> = [];
     for (const image of this.inputs.images) {
-      tags.push(`${image}:${version.main}`);
+      if (main) tags.push(`${image}:${version.main}`);
+      if (hasFlavor) tags.push(`${image}:${version.main}-${flavor}`);
       for (const partial of version.partial) {
-        tags.push(`${image}:${partial}`);
+        if (main) tags.push(`${image}:${partial}`);
+        if (hasFlavor) tags.push(`${image}:${partial}-${flavor}`);
       }
       if (version.latest) {
-        tags.push(`${image}:latest`);
+        if (main) tags.push(`${image}:latest`);
+        if (hasFlavor) tags.push(`${image}:${flavor}`);
       }
       if (this.context.sha && this.inputs.tagSha) {
-        tags.push(`${image}:sha-${this.context.sha.substr(0, 7)}`);
+        if (main) tags.push(`${image}:sha-${this.context.sha.substr(0, 7)}`);
+        if (hasFlavor) tags.push(`${image}:sha-${this.context.sha.substr(0, 7)}-${flavor}`);
       }
     }
     return tags;