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Embed build version into binaries

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Pass VERSION from CI into Docker builds and embed it into the Go binary via ldflags. Updated .github workflow to supply --build-arg VERSION for both architectures. Added ARG VERSION and logic in Dockerfile and Dockerfile.arm64 to derive the version from git (git describe --tags) or fall back to the provided build-arg, then set it with -X during go build. Changed VERSION in machinery/src/utils/main.go from a const to a var defaulting to "0.0.0" and documented that it is overridden at build time. This ensures released images contain the correct agent version while local/dev builds keep a sensible default.
This commit is contained in:
cedricve
2026-02-13 21:50:09 +01:00
parent 9d83cab5cc
commit 1ae6a46d88
4 changed files with 12 additions and 5 deletions
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4
.github/workflows/release-create.yml vendored
View File

@@ -34,7 +34,7 @@ jobs:
length: 7
- name: Run Build
run: |
docker build -t ${{matrix.architecture}} .
docker build --build-arg VERSION=${{github.event.inputs.tag || github.ref_name}} -t ${{matrix.architecture}} .
CID=$(docker create ${{matrix.architecture}})
docker cp ${CID}:/home/agent ./output-${{matrix.architecture}}
docker rm ${CID}
@@ -71,7 +71,7 @@ jobs:
length: 7
- name: Run Build
run: |
docker build -t ${{matrix.architecture}} -f Dockerfile.arm64 .
docker build --build-arg VERSION=${{github.event.inputs.tag || github.ref_name}} -t ${{matrix.architecture}} -f Dockerfile.arm64 .
CID=$(docker create ${{matrix.architecture}})
docker cp ${CID}:/home/agent ./output-${{matrix.architecture}}
docker rm ${CID}

4
Dockerfile
View File

@@ -1,5 +1,6 @@
ARG BASE_IMAGE_VERSION=amd64-ddbe40e
ARG VERSION=0.0.0
FROM kerberos/base:${BASE_IMAGE_VERSION} AS build-machinery
LABEL AUTHOR=uug.ai
@@ -34,7 +35,8 @@ RUN cat /go/src/github.com/kerberos-io/agent/machinery/version
RUN cd /go/src/github.com/kerberos-io/agent/machinery && \
go mod download && \
go build -tags timetzdata,netgo,osusergo --ldflags '-s -w -extldflags "-static -latomic"' main.go && \
VERSION=$(cd /go/src/github.com/kerberos-io/agent && git describe --tags --always 2>/dev/null || echo "${VERSION}") && \
go build -tags timetzdata,netgo,osusergo --ldflags "-s -w -X github.com/kerberos-io/agent/machinery/src/utils.VERSION=${VERSION} -extldflags '-static -latomic'" main.go && \
mkdir -p /agent && \
mv main /agent && \
mv version /agent && \

4
Dockerfile.arm64
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@@ -1,5 +1,6 @@
ARG BASE_IMAGE_VERSION=arm64-ddbe40e
ARG VERSION=0.0.0
FROM kerberos/base:${BASE_IMAGE_VERSION} AS build-machinery
LABEL AUTHOR=uug.ai
@@ -34,7 +35,8 @@ RUN cat /go/src/github.com/kerberos-io/agent/machinery/version
RUN cd /go/src/github.com/kerberos-io/agent/machinery && \
go mod download && \
go build -tags timetzdata,netgo,osusergo --ldflags '-s -w -extldflags "-static -latomic"' main.go && \
VERSION=$(cd /go/src/github.com/kerberos-io/agent && git describe --tags --always 2>/dev/null || echo "${VERSION}") && \
go build -tags timetzdata,netgo,osusergo --ldflags "-s -w -X github.com/kerberos-io/agent/machinery/src/utils.VERSION=${VERSION} -extldflags '-static -latomic'" main.go && \
mkdir -p /agent && \
mv main /agent && \
mv version /agent && \

5
machinery/src/utils/main.go
View File

@@ -25,7 +25,10 @@ import (
"github.com/nfnt/resize"
)
const VERSION = "3.5.0"
// VERSION is the agent version. It defaults to "0.0.0" for local dev builds
// and is overridden at build time via:
// go build -ldflags "-X github.com/kerberos-io/agent/machinery/src/utils.VERSION=v1.2.3"
var VERSION = "0.0.0"
const letterBytes = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"