ci: use alpine in dockerfile (#15703)

(cherry picked from commit b2c8418)

# Conflicts:
#	.github/workflows/docker.yml

.github/workflows/docker.yml

@@ -1,6 +1,10 @@
 name: Build & Push
 # Build & Push builds the simapp docker image on every push to main and
+<<<<<<< HEAD
 # and pushes the image to https://github.com/cosmos/cosmos-sdk/pkgs/container/simapp
+=======
+# and pushes the image to https://ghcr.io/cosmos/simapp
+>>>>>>> b2c84188d (ci: use alpine in dockerfile (#15703))
 on:
   pull_request:
     paths:
@@ -11,6 +15,12 @@ on:
     tags:
       - "v[0-9]+.[0-9]+.[0-9]+" # Push events to matching v*, i.e. v1.0, v20.15.10
       - "v[0-9]+.[0-9]+.[0-9]+-rc*" # Push events to matching v*, i.e. v1.0-rc1, v20.15.10-rc5
+  workflow_dispatch:
+    inputs:
+      tags:
+        description: "SDK version (e.g 0.47.1)"
+        required: true
+        type: string
 
 permissions:
   contents: read
@@ -37,8 +47,8 @@ jobs:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
             type=raw,value=latest,enable={{is_default_branch}}
-            type=semver,pattern={{version}}
-            type=semver,pattern=latest-{{major}}.{{minor}}
+            type=semver,pattern=v{{major}}.{{minor}}
+            type=semver,pattern={{version}},value=v${{ inputs.tags }},enable=${{ inputs.tags != '' }}
           flavor: |
             latest=false
 

Dockerfile

@@ -32,9 +32,8 @@ ARG TARGETOS TARGETARCH
 # install simapp, remove packages
 RUN GOOS=$TARGETOS GOARCH=$TARGETARCH make build
 
-
-# Final image, without build artifacts. `/base` already contains openssl, glibc and all required libs to start an app
-FROM gcr.io/distroless/base
+# Use alpine:3 as a base image
+FROM alpine:3
 
 EXPOSE 26656 26657 1317 9090
 # Run simd by default, omit entrypoint to ease using container with simcli