chore(main): release 2.5.0 (#25)

Co-authored-by: jimehbot[bot] <132453784+jimehbot[bot]@users.noreply.github.com>

.circleci/config.yml

@@ -1,57 +0,0 @@
-version: 2
-jobs:
-  build:
-    docker:
-      - image: circleci/golang:1.16
-    working_directory: /go/src/github.com/jimeh/casecmp
-    steps:
-      - checkout
-      - run:
-          name: Install dependencies
-          command: go mod download
-      - run:
-          name: Build binary
-          command: make
-      - run:
-          name: Start service
-          command: ./bin/casecmp --port=8080
-          background: true
-      - run:
-          name: Validate service is working
-          command: |
-            curl --retry 10 --retry-delay 1 --retry-connrefused \
-              http://localhost:8080/
-  release:
-    docker:
-      - image: circleci/golang:1.16
-    working_directory: /go/src/github.com/jimeh/casecmp
-    steps:
-      - checkout
-      - run: curl -sL https://git.io/goreleaser | bash
-
-workflows:
-  version: 2
-  build:
-    jobs:
-      - build:
-          filters:
-            branches:
-              only: /.*/
-            tags:
-              ignore: /^v[0-9]+(\.[0-9]+)*/
-  build-and-release:
-    jobs:
-      - build:
-          filters:
-            branches:
-              ignore: /.*/
-            tags:
-              only: /^v[0-9]+(\.[0-9]+)*/
-      - release:
-          requires:
-            - build
-          filters:
-            branches:
-              ignore: /.*/
-            tags:
-              only: /^v[0-9]+(\.[0-9]+)*/

.cr.yaml

@@ -0,0 +1,2 @@
+---
+release-name-template: "v{{ .Version }}"

.github/.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+  ".": "2.5.0"
+}

.github/release-please-config.json

@@ -0,0 +1,26 @@
+{
+  "packages": {
+    ".": {
+      "release-type": "go",
+      "changelog-path": "CHANGELOG.md",
+      "bump-minor-pre-major": true,
+      "bump-patch-for-minor-pre-major": true,
+      "draft": false,
+      "always-update": true,
+      "prerelease": false,
+      "extra-files": [
+        {
+          "type": "yaml",
+          "path": "chart/Chart.yaml",
+          "jsonpath": "appVersion"
+        },
+        {
+          "type": "yaml",
+          "path": "chart/Chart.yaml",
+          "jsonpath": "version"
+        }
+      ]
+    }
+  },
+  "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json"
+}

.github/workflows/ci.yml

@@ -0,0 +1,108 @@
+---
+name: CI
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: "go.mod"
+      - name: Install dependencies
+        run: go mod download
+      - name: Build binary
+        run: make
+      - name: Run and make request
+        run: |
+          ./bin/casecmp -p 8080 &
+          curl --silent --retry 10 --retry-delay 1 --retry-connrefused \
+              http://localhost:8080/
+
+  helm-lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: azure/setup-helm@v4
+      - name: Lint chart
+        run: helm lint chart
+      - name: Template chart
+        run: helm template chart
+
+  release-please:
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/heads/')
+    permissions:
+      contents: write
+      pull-requests: write
+    outputs:
+      release_created: ${{ steps.release.outputs.release_created }}
+      tag_name: ${{ steps.release.outputs.tag_name }} # e.g. v1.0.0
+      version: ${{ steps.release.outputs.version }} # e.g. 1.0.0
+    steps:
+      - uses: jimeh/release-please-manifest-action@v2
+        id: release
+        with:
+          target-branch-pattern: '^(main|master|release-[0-9]+(\.[0-9]+)?\.x)$'
+          app-id: ${{ secrets.RELEASE_BOT_APP_ID }}
+          private-key: ${{ secrets.RELEASE_BOT_PRIVATE_KEY }}
+
+  release:
+    runs-on: ubuntu-latest
+    needs: [build, helm-lint, release-please]
+    if: needs.release-please.outputs.release_created
+    permissions:
+      contents: write
+      packages: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - run: git fetch --force --tags
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      - uses: docker/setup-buildx-action@v2
+      - name: Docker Login
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: "go.mod"
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v6
+        with:
+          version: '~> v2'
+          args: release --clean
+        env:
+          REGISTRY: ghcr.io
+          IMAGE_NAME: ${{ github.repository }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  release-chart:
+    runs-on: ubuntu-latest
+    needs: [release, release-please]
+    if: needs.release-please.outputs.release_created
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - run: git fetch --force --tags
+      - name: Configure Git
+        run: |
+          git config user.name "${{ github.actor }}"
+          git config user.email "${{ github.actor }}@users.noreply.github.com"
+      - name: Install Helm
+        uses: azure/setup-helm@v4
+      - name: Run chart-releaser
+        uses: helm/chart-releaser-action@v1
+        with:
+          charts_dir: chart
+          config: .cr.yaml
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

.goreleaser.yml

@@ -1,3 +1,4 @@
+version: 2
 before:
   hooks:
     - go mod tidy
@@ -10,40 +11,100 @@ builds:
     ldflags:
       - "-s -w -X main.version={{ .Version }} -X main.commit={{ .Commit }}"
     goos:
-      - darwin
+      - "darwin"
-      - freebsd
+      - "freebsd"
-      - linux
+      - "linux"
-      - windows
+      - "windows"
     goarch:
-      - amd64
+      - "amd64"
-      - 386
+      - "386"
-      - arm
+      - "arm"
+      - "arm64"
     goarm:
-      - 6
+      - "6"
-      - 7
+      - "7"
+
+universal_binaries:
+  - replace: false
 
 archives:
-  - format: tar.gz
+  - formats: ["tar.gz"]
     name_template: |-
-      {{ .ProjectName }}-{{ .Version }}_{{ .Os }}_{{ .Arch }}{{ if .Arm }}v{{ .Arm }}{{ end }}
+      {{ .ProjectName }}-{{ .Version }}_{{ if eq .Os "darwin" }}macos{{ else }}{{ .Os }}{{ end }}_{{ if eq .Arch "all" }}universal{{ else }}{{ .Arch }}{{ end }}{{ if .Arm }}v{{ .Arm }}{{ end }}{{ if not (eq .Amd64 "v1") }}{{ .Amd64 }}{{ end }}
     wrap_in_directory: true
     format_overrides:
       - goos: windows
-        format: zip
+        formats: ["zip"]
-    replacements:
-      darwin: Darwin
-      linux: Linux
-      windows: Windows
-      386: i386
-      amd64: x86_64
 
 checksum:
   name_template: "checksums.txt"
 snapshot:
-  name_template: "{{ .Tag }}-next"
+  version_template: "{{ .Tag }}-next"
+
 changelog:
-  sort: asc
+  disable: true
-  filters:
+
-    exclude:
+dockers:
-      - "^docs:"
+  - image_templates:
-      - "^test:"
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:{{ .Version }}-amd64"
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:latest-amd64"
+    dockerfile: Dockerfile
+    use: buildx
+    goos: linux
+    goarch: amd64
+    build_flag_templates:
+      - "--platform=linux/amd64"
+  - image_templates:
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:{{ .Version }}-386"
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:latest-386"
+    dockerfile: Dockerfile
+    use: buildx
+    goos: linux
+    goarch: "386"
+    build_flag_templates:
+      - "--platform=linux/386"
+  - image_templates:
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:{{ .Version }}-arm64"
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:latest-arm64"
+    use: buildx
+    goos: linux
+    goarch: arm64
+    dockerfile: Dockerfile
+    build_flag_templates:
+      - "--platform=linux/arm64"
+  - image_templates:
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:{{ .Version }}-armv6"
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:latest-armv6"
+    use: buildx
+    goos: linux
+    goarch: arm
+    goarm: "6"
+    dockerfile: Dockerfile
+    build_flag_templates:
+      - "--platform=linux/arm/v6"
+  - image_templates:
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:{{ .Version }}-armv7"
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:latest-armv7"
+    use: buildx
+    goos: linux
+    goarch: arm
+    goarm: "7"
+    dockerfile: Dockerfile
+    build_flag_templates:
+      - "--platform=linux/arm/v7"
+
+docker_manifests:
+  - name_template: "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:{{ .Version }}"
+    image_templates:
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:{{ .Version }}-amd64"
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:{{ .Version }}-386"
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:{{ .Version }}-arm64"
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:{{ .Version }}-armv6"
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:{{ .Version }}-armv7"
+  - name_template: "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:latest"
+    image_templates:
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:latest-amd64"
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:latest-386"
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:latest-arm64"
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:latest-armv6"
+      - "{{ .Env.REGISTRY }}/{{ .Env.IMAGE_NAME }}:latest-armv7"

CHANGELOG.md

@@ -0,0 +1,78 @@
+# Changelog
+
+## [2.5.0](https://github.com/jimeh/casecmp/compare/v2.4.1...v2.5.0) (2025-04-22)
+
+
+### Features
+
+* **chart:** add revisionHistoryLimit configuration ([#24](https://github.com/jimeh/casecmp/issues/24)) ([37968b6](https://github.com/jimeh/casecmp/commit/37968b6d7179e6c48cdfb266a74d92af88c5fb0a))
+
+## [2.4.1](https://github.com/jimeh/casecmp/compare/v2.4.0...v2.4.1) (2025-03-16)
+
+
+### Bug Fixes
+
+* **ci/build:** add missing permission to release job ([cc42b4f](https://github.com/jimeh/casecmp/commit/cc42b4f2bc8112b249bcf1a596989618ee80ca0d))
+
+## [2.4.0](https://github.com/jimeh/casecmp/compare/v2.3.0...v2.4.0) (2025-03-16)
+
+
+### Features
+
+* use Go 1.24 and a net/http ServeMux for routing ([#19](https://github.com/jimeh/casecmp/issues/19)) ([50c538e](https://github.com/jimeh/casecmp/commit/50c538e3b78d841bf09653a1571a8019a2126be0))
+
+## [2.3.0](https://github.com/jimeh/casecmp/compare/v2.2.0...v2.3.0) (2023-04-26)
+
+
+### Features
+
+* **version:** add Go version to version output ([5500933](https://github.com/jimeh/casecmp/commit/55009336891b6c281542cf85498abb04816879d3))
+
+## [2.2.0](https://github.com/jimeh/casecmp/compare/v2.1.0...v2.2.0) (2023-03-10)
+
+
+### Features
+
+* **license:** change license to CC0 1.0 Universal ([7faab18](https://github.com/jimeh/casecmp/commit/7faab1863b48e31e46b763ef7dca0eca1825f6f8))
+
+## [2.1.0](https://github.com/jimeh/casecmp/compare/v2.0.0...v2.1.0) (2022-11-14)
+
+
+### Features
+
+* **helm-chart:** add casecmp.httpsExamples value ([406f21f](https://github.com/jimeh/casecmp/commit/406f21f72115884503bfe3e928d993a536eb45b2))
+* **json:** add support for JSON request and response types ([0658bad](https://github.com/jimeh/casecmp/commit/0658bad90257aa55bfadea6b6167337b21df1a13))
+
+## [2.0.0](https://github.com/jimeh/casecmp/compare/v1.5.0...v2.0.0) (2022-11-14)
+
+
+### ⚠ BREAKING CHANGES
+
+* Long versions of command line flags are no longer supported.
+
+### Features
+
+* **chart:** add kubernetes helm chart ([4e36d51](https://github.com/jimeh/casecmp/commit/4e36d51dc1c081fd50b1397eabb736ad3fe21541))
+* **env:** support BIND environment variable ([623d2c2](https://github.com/jimeh/casecmp/commit/623d2c21b0a25d3b54b6cf3e18fc147a2faa8cd6))
+* remove external dependencies ([9a904fe](https://github.com/jimeh/casecmp/commit/9a904fee99e203d7ddb2a84e2d056d3ed8ec197a))
+
+## [1.5.0](https://github.com/jimeh/casecmp/compare/v1.4.0...v1.5.0) (2022-11-14)
+
+
+### Features
+
+* **deps:** upgrade to Go 1.19 ([75ddcce](https://github.com/jimeh/casecmp/commit/75ddccedf330497c0e04cd4b7f0679e647b8e190))
+
+## [1.4.0](https://github.com/jimeh/casecmp/compare/v1.3.0...v1.4.0) (2022-05-24)
+
+
+### Features
+
+* compare on GET requests with non-empty query string ([cdaaec6](https://github.com/jimeh/casecmp/commit/cdaaec6b0b763141476562047578844e6105ec7a))
+
+## [1.3.0](https://github.com/jimeh/casecmp/compare/v1.2.3...v1.3.0) (2022-02-13)
+
+
+### Features
+
+* **release:** setup for publishing docker images to ghcr ([1816e93](https://github.com/jimeh/casecmp/commit/1816e93170bb725f8da073b91070a981dd039fad))

Dockerfile

@@ -1,17 +1,5 @@
-FROM golang:1.16-alpine as builder
-RUN apk add --no-cache \
-    git
-
-WORKDIR /app
-COPY . /app
-RUN env CGO_ENABLED=0 \
-    go build -a -o /casecmp -ldflags "-s -w \
-        -X main.version=$(cat VERSION) \
-        -X main.commit=$(git show --format='%h' --no-patch) \
-        -X main.date=$(date +%Y-%m-%dT%T%z)"
-
 FROM scratch
-COPY --from=builder /casecmp /
+COPY ./casecmp /
 ENV PORT 8080
 EXPOSE 8080
 WORKDIR /

LICENSE

@@ -1,13 +1,116 @@
-        DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+CC0 1.0 Universal
-                    Version 2, December 2004
 
- Copyright (C) 2018 Jim Myhrberg
+Statement of Purpose
 
- Everyone is permitted to copy and distribute verbatim or modified
+The laws of most jurisdictions throughout the world automatically confer
- copies of this license document, and changing it is allowed as long
+exclusive Copyright and Related Rights (defined below) upon the creator and
- as the name is changed.
+subsequent owner(s) (each and all, an "owner") of an original work of
+authorship and/or a database (each, a "Work").
 
-            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+Certain owners wish to permanently relinquish those rights to a Work for the
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+purpose of contributing to a commons of creative, cultural and scientific
+works ("Commons") that the public can reliably and without fear of later
+claims of infringement build upon, modify, incorporate in other works, reuse
+and redistribute as freely as possible in any form whatsoever and for any
+purposes, including without limitation commercial purposes. These owners may
+contribute to the Commons to promote the ideal of a free culture and the
+further production of creative, cultural and scientific works, or to gain
+reputation or greater distribution for their Work in part through the use and
+efforts of others.
 
-  0. You just DO WHAT THE FUCK YOU WANT TO.
+For these and/or other purposes and motivations, and without any expectation
+of additional consideration or compensation, the person associating CC0 with a
+Work (the "Affirmer"), to the extent that he or she is an owner of Copyright
+and Related Rights in the Work, voluntarily elects to apply CC0 to the Work
+and publicly distribute the Work under its terms, with knowledge of his or her
+Copyright and Related Rights in the Work and the meaning and intended legal
+effect of CC0 on those rights.
+
+1. Copyright and Related Rights. A Work made available under CC0 may be
+protected by copyright and related or neighboring rights ("Copyright and
+Related Rights"). Copyright and Related Rights include, but are not limited
+to, the following:
+
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+
+  vii. other similar, equivalent or corresponding rights throughout the world
+  based on applicable law or treaty, and any national implementations thereof.
+
+2. Waiver. To the greatest extent permitted by, but not in contravention of,
+applicable law, Affirmer hereby overtly, fully, permanently, irrevocably and
+unconditionally waives, abandons, and surrenders all of Affirmer's Copyright
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+known or unknown (including existing as well as future claims and causes of
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+duration provided by applicable law or treaty (including future time
+extensions), (iii) in any current or future medium and for any number of
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+the Waiver for the benefit of each member of the public at large and to the
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+shall not be subject to revocation, rescission, cancellation, termination, or
+any other legal or equitable action to disrupt the quiet enjoyment of the Work
+by the public as contemplated by Affirmer's express Statement of Purpose.
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+3. Public License Fallback. Should any part of the Waiver for any reason be
+judged legally invalid or ineffective under applicable law, then the Waiver
+shall be preserved to the maximum extent permitted taking into account
+Affirmer's express Statement of Purpose. In addition, to the extent the Waiver
+is so judged Affirmer hereby grants to each affected person a royalty-free,
+non transferable, non sublicensable, non exclusive, irrevocable and
+unconditional license to exercise Affirmer's Copyright and Related Rights in
+the Work (i) in all territories worldwide, (ii) for the maximum duration
+provided by applicable law or treaty (including future time extensions), (iii)
+in any current or future medium and for any number of copies, and (iv) for any
+purpose whatsoever, including without limitation commercial, advertising or
+promotional purposes (the "License"). The License shall be deemed effective as
+of the date CC0 was applied by Affirmer to the Work. Should any part of the
+License for any reason be judged legally invalid or ineffective under
+applicable law, such partial invalidity or ineffectiveness shall not
+invalidate the remainder of the License, and in such case Affirmer hereby
+affirms that he or she will not (i) exercise any of his or her remaining
+Copyright and Related Rights in the Work or (ii) assert any associated claims
+and causes of action with respect to the Work, in either case contrary to
+Affirmer's express Statement of Purpose.
+
+4. Limitations and Disclaimers.
+
+  a. No trademark or patent rights held by Affirmer are waived, abandoned,
+  surrendered, licensed or otherwise affected by this document.
+
+  b. Affirmer offers the Work as-is and makes no representations or warranties
+  of any kind concerning the Work, express, implied, statutory or otherwise,
+  including without limitation warranties of title, merchantability, fitness
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+For more information, please see
+<http://creativecommons.org/publicdomain/zero/1.0/>

Makefile

@@ -1,14 +1,13 @@
 NAME = casecmp
 BINARY = bin/${NAME}
-VERSION ?= $(shell cat VERSION)
+VERSION ?= $(shell git describe --tags)
 SOURCES = $(shell find . -name '*.go' -o -name 'Makefile')
 
 $(BINARY): $(SOURCES)
-	CGO_ENABLED=0 go build -a -o ${BINARY} -ldflags \ "\
+	CGO_ENABLED=0 go build -o ${BINARY} -ldflags \ "\
 		-s -w \
 		-X main.version=${VERSION} \
-		-X main.commit=$(shell git show --format="%h" --no-patch) \
+		-X main.commit=$(shell git show --format="%h" --no-patch)"
-		-X main.date=$(shell date +%Y-%m-%dT%T%z)"
 
 .PHONY: build
 build: $(BINARY)

README.md

@@ -1,22 +1,7 @@
 # casecmp
 
-Case-insensitive string comparison, as an API. Because ¯\\_(ツ)\_/¯
+Case-insensitive string comparison, as an API. Because ¯\\\_(ツ)\_/¯
-
 
 ## License
 
-```
+[CC0 1.0 Universal](http://creativecommons.org/publicdomain/zero/1.0/)
-        DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
-                    Version 2, December 2004
-
- Copyright (C) 2018 Jim Myhrberg
-
- Everyone is permitted to copy and distribute verbatim or modified
- copies of this license document, and changing it is allowed as long
- as the name is changed.
-
-            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-
-  0. You just DO WHAT THE FUCK YOU WANT TO.
-```

VERSION

@@ -1 +0,0 @@
-1.2.1

chart/.helmignore

@@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

chart/Chart.yaml

@@ -0,0 +1,6 @@
+apiVersion: v2
+name: casecmp
+description: A Helm chart for casecmp
+type: application
+version: 2.5.0
+appVersion: 2.5.0

chart/templates/NOTES.txt

@@ -0,0 +1,22 @@
+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range $host := .Values.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "casecmp.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "casecmp.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "casecmp.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "casecmp.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT
+{{- end }}

chart/templates/_helpers.tpl

@@ -0,0 +1,62 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "casecmp.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "casecmp.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "casecmp.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "casecmp.labels" -}}
+helm.sh/chart: {{ include "casecmp.chart" . }}
+{{ include "casecmp.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "casecmp.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "casecmp.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "casecmp.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "casecmp.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

chart/templates/deployment.yaml

@@ -0,0 +1,65 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "casecmp.fullname" . }}
+  labels:
+    {{- include "casecmp.labels" . | nindent 4 }}
+spec:
+  {{- if not .Values.autoscaling.enabled }}
+  replicas: {{ .Values.replicaCount }}
+  {{- end }}
+  revisionHistoryLimit: {{ .Values.revisionHistoryLimit }}
+  selector:
+    matchLabels:
+      {{- include "casecmp.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "casecmp.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "casecmp.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          env:
+            - name: "FORCE_HTTPS"
+              value: "{{ if .Values.casecmp.httpsExamples }}true{{ end }}"
+          ports:
+            - name: http
+              containerPort: 8080
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /
+              port: http
+          readinessProbe:
+            httpGet:
+              path: /
+              port: http
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

chart/templates/hpa.yaml

@@ -0,0 +1,28 @@
+{{- if .Values.autoscaling.enabled }}
+apiVersion: autoscaling/v2beta1
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ include "casecmp.fullname" . }}
+  labels:
+    {{- include "casecmp.labels" . | nindent 4 }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "casecmp.fullname" . }}
+  minReplicas: {{ .Values.autoscaling.minReplicas }}
+  maxReplicas: {{ .Values.autoscaling.maxReplicas }}
+  metrics:
+    {{- if .Values.autoscaling.targetCPUUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: cpu
+        targetAverageUtilization: {{ .Values.autoscaling.targetCPUUtilizationPercentage }}
+    {{- end }}
+    {{- if .Values.autoscaling.targetMemoryUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: memory
+        targetAverageUtilization: {{ .Values.autoscaling.targetMemoryUtilizationPercentage }}
+    {{- end }}
+{{- end }}

chart/templates/ingress.yaml

@@ -0,0 +1,61 @@
+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "casecmp.fullname" . -}}
+{{- $svcPort := .Values.service.port -}}
+{{- if and .Values.ingress.className (not (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion)) }}
+  {{- if not (hasKey .Values.ingress.annotations "kubernetes.io/ingress.class") }}
+  {{- $_ := set .Values.ingress.annotations "kubernetes.io/ingress.class" .Values.ingress.className}}
+  {{- end }}
+{{- end }}
+{{- if semverCompare ">=1.19-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1
+{{- else if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    {{- include "casecmp.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if and .Values.ingress.className (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion) }}
+  ingressClassName: {{ .Values.ingress.className }}
+  {{- end }}
+  {{- if .Values.ingress.tls }}
+  tls:
+    {{- range .Values.ingress.tls }}
+    - hosts:
+        {{- range .hosts }}
+        - {{ . | quote }}
+        {{- end }}
+      secretName: {{ .secretName }}
+    {{- end }}
+  {{- end }}
+  rules:
+    {{- range .Values.ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+          {{- range .paths }}
+          - path: {{ .path }}
+            {{- if and .pathType (semverCompare ">=1.18-0" $.Capabilities.KubeVersion.GitVersion) }}
+            pathType: {{ .pathType }}
+            {{- end }}
+            backend:
+              {{- if semverCompare ">=1.19-0" $.Capabilities.KubeVersion.GitVersion }}
+              service:
+                name: {{ $fullName }}
+                port:
+                  number: {{ $svcPort }}
+              {{- else }}
+              serviceName: {{ $fullName }}
+              servicePort: {{ $svcPort }}
+              {{- end }}
+          {{- end }}
+    {{- end }}
+{{- end }}

chart/templates/service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "casecmp.fullname" . }}
+  labels:
+    {{- include "casecmp.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    {{- include "casecmp.selectorLabels" . | nindent 4 }}

chart/templates/serviceaccount.yaml

@@ -0,0 +1,12 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "casecmp.serviceAccountName" . }}
+  labels:
+    {{- include "casecmp.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}

chart/templates/tests/test-connection.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: "{{ include "casecmp.fullname" . }}-test-connection"
+  labels:
+    {{- include "casecmp.labels" . | nindent 4 }}
+  annotations:
+    "helm.sh/hook": test
+spec:
+  containers:
+    - name: wget
+      image: busybox
+      command: ['wget']
+      args: ['{{ include "casecmp.fullname" . }}:{{ .Values.service.port }}']
+  restartPolicy: Never

chart/values.yaml

@@ -0,0 +1,91 @@
+# Default values for casecmp.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+revisionHistoryLimit: 10
+
+image:
+  repository: ghcr.io/jimeh/casecmp
+  pullPolicy: IfNotPresent
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: ""
+
+casecmp:
+  # Use "https://" scheme in examples.
+  httpsExamples: false
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+podAnnotations: {}
+
+podSecurityContext:
+  {}
+  # fsGroup: 2000
+
+securityContext:
+  {}
+  # capabilities:
+  #   drop:
+  #   - ALL
+  # readOnlyRootFilesystem: true
+  # runAsNonRoot: true
+  # runAsUser: 1000
+
+service:
+  type: ClusterIP
+  port: 80
+
+ingress:
+  enabled: false
+  className: ""
+  annotations:
+    {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: chart-example.local
+      paths:
+        - path: /
+          pathType: Prefix
+  tls: []
+  #  - secretName: chart-example-tls
+  #    hosts:
+  #      - chart-example.local
+
+resources:
+  {}
+  # We usually recommend not to specify default resources and to leave this as a conscious
+  # choice for the user. This also increases chances charts run on environments with little
+  # resources, such as Minikube. If you do want to specify resources, uncomment the following
+  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
+  # limits:
+  #   cpu: 100m
+  #   memory: 128Mi
+  # requests:
+  #   cpu: 100m
+  #   memory: 128Mi
+
+autoscaling:
+  enabled: false
+  minReplicas: 1
+  maxReplicas: 100
+  targetCPUUtilizationPercentage: 80
+  # targetMemoryUtilizationPercentage: 80
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}

go.mod

@@ -1,10 +1,3 @@
 module github.com/jimeh/casecmp
 
-go 1.16
+go 1.24.1
-
-require (
-	github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc // indirect
-	github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf // indirect
-	github.com/stretchr/testify v1.7.0 // indirect
-	gopkg.in/alecthomas/kingpin.v2 v2.2.6
-)

go.sum

@@ -1,16 +0,0 @@
-github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc h1:cAKDfWh5VpdgMhJosfJnn5/FoN2SRZ4p7fJNX58YPaU=
-github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
-github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf h1:qet1QNfXsQxTZqLG4oE62mJzwPIB8+Tee4RNCL9ulrY=
-github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
-github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-gopkg.in/alecthomas/kingpin.v2 v2.2.6 h1:jMFz6MfLP0/4fUyZle81rXUoxOBFi19VUFKVDOQfozc=
-gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -2,80 +2,146 @@ package main
 
 import (
 	"bytes"
+	"encoding/json"
+	"flag"
 	"fmt"
+	"io"
 	"log"
 	"net/http"
 	"os"
+	"runtime"
+	"strconv"
 	"strings"
-
+	"text/template"
-	"gopkg.in/alecthomas/kingpin.v2"
+	"time"
 )
 
 var (
+	version = "dev"
+	commit  = "unknown"
+)
+
+const (
 	name        = "casecmp"
-	version     = "dev"
+	defaultPort = 8080
-	commit      = "unknown"
+	defaultBind = "0.0.0.0"
-	date        = "unknown"
-	defaultPort = "8080"
 )
 
 // Argument parsing setup.
 var (
-	portFlag = kingpin.Flag("port", "Port to listen to.").Short('p').
+	portFlag       = flag.Int("p", defaultPort, "Port to listen on")
-			Default("").String()
+	bindFlag       = flag.String("b", defaultBind, "Bind address")
-	bindFlag = kingpin.Flag("bind", "Bind address.").Short('b').
+	forceHTTPSFlag = flag.Bool(
-			Default("0.0.0.0").String()
+		"f", false, "Use https:// in example curl commands",
-	forceHTTPSFlag = kingpin.Flag(
+	)
-		"force-https", "Use https:// in example curl commands",
+	versionFlag = flag.Bool("v", false, "Print version info")
-	).Bool()
-	versionFlag = kingpin.Flag("version", "Print version info.").
-			Short('v').Bool()
 )
 
+type IndexData struct {
+	Name    string
+	Version string
+	Scheme  string
+	Host    string
+}
+
+var indexTpl = template.Must(template.New("index").Parse(`{{.Name}} {{.Version}}
+
+Case-insensitive string comparison, as an API. Because ¯\_(ツ)_/¯
+
+Example usage:
+curl -X POST -F "a=Foo Bar" -F "b=FOO BAR" {{.Scheme}}://{{.Host}}/
+curl -X GET "{{.Scheme}}://{{.Host}}/?a=Foo+Bar&b=FOO+BAR"
+curl -X GET -H "Accept: application/json" "{{.Scheme}}://{{.Host}}/?a=Foo+Bar&b=FOO+BAR"
+curl -X POST -H "Content-Type: application/json" -d '{"a":"Foo Bar","b":"FOO BAR"}' {{.Scheme}}://{{.Host}}/
+`))
+
 func indexHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "GET" || r.URL.RawQuery != "" {
+		casecmpHandler(w, r)
+		return
+	}
+
 	scheme := "http"
 	if r.TLS != nil || *forceHTTPSFlag {
 		scheme = "https"
 	}
 
-	_, err := fmt.Fprintf(w, `%s %s
+	err := indexTpl.Execute(w, &IndexData{
-
+		Name:    name,
-Case-insensitive string comparison, as an API. Because ¯\_(ツ)_/¯
+		Version: version,
-
+		Scheme:  scheme,
-Example usage:
+		Host:    r.Host,
-curl -X POST -F "a=Foo Bar" -F "b=FOO BAR" %s://%s/
+	})
-curl -X POST "%s://%s/?a=Foo+Bar&b=FOO+BAR"`,
-		name, version, scheme, r.Host, scheme, r.Host)
 	if err != nil {
 		log.Fatal(err)
 	}
 }
 
+func aboutHandler(w http.ResponseWriter, _ *http.Request) {
+	_, err := fmt.Fprintf(w,
+		`%s %s
+
+https://github.com/jimeh/casecmp
+`,
+		name, version)
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+type JSONData struct {
+	A string `json:"a"`
+	B string `json:"b"`
+}
+
 func casecmpHandler(w http.ResponseWriter, r *http.Request) {
-	a := r.FormValue("a")
+	equal, err := casecmp(r)
-	b := r.FormValue("b")
-	resp := "0"
-
-	if strings.EqualFold(string(a), string(b)) {
-		resp = "1"
-	}
-	_, err := fmt.Fprintf(w, resp)
 	if err != nil {
-		log.Fatal(err)
+		w.WriteHeader(http.StatusInternalServerError)
-	}
+		_, _ = fmt.Fprint(w, err.Error())
-}
-
-func rootHandler(w http.ResponseWriter, r *http.Request) {
-	if r.URL.Path != "/" {
-		http.NotFound(w, r)
 		return
 	}
 
-	if r.Method == "GET" {
+	resp := "0"
-		indexHandler(w, r)
+	if equal {
-	} else {
+		resp = "1"
-		casecmpHandler(w, r)
 	}
+
+	accept := r.Header.Get("Accept")
+	if strings.Contains(accept, "application/json") {
+		w.Header().Set("Content-Type", "application/json; charset=utf-8")
+		_, _ = fmt.Fprintf(w, `{"result":%s}`, resp)
+
+		return
+	}
+
+	_, _ = fmt.Fprint(w, resp)
+}
+
+func casecmp(r *http.Request) (bool, error) {
+	var a, b string
+
+	contentType := r.Header.Get("Content-Type")
+	if strings.Contains(contentType, "application/json") {
+		body, err := io.ReadAll(r.Body)
+		if err != nil {
+			return false, err
+		}
+
+		d := JSONData{}
+		err = json.Unmarshal(body, &d)
+		if err != nil {
+			return false, fmt.Errorf("invalid JSON request: %w", err)
+		}
+
+		a = d.A
+		b = d.B
+	} else {
+		a = r.FormValue("a")
+		b = r.FormValue("b")
+	}
+
+	return strings.EqualFold(string(a), string(b)), nil
 }
 
 func printVersion() {
@@ -86,18 +152,28 @@ func printVersion() {
 		buffer.WriteString(fmt.Sprintf(" (%s)", commit))
 	}
 
+	buffer.WriteString(fmt.Sprintf(", built with %s", runtime.Version()))
+
 	fmt.Println(buffer.String())
 }
 
-func startServer() {
+func startServer() error {
-	http.HandleFunc("/", rootHandler)
+	if *portFlag == defaultPort {
-
-	if *portFlag == "" {
 		envPort := os.Getenv("PORT")
 		if envPort != "" {
-			*portFlag = envPort
+			v, err := strconv.Atoi(envPort)
-		} else {
+			if err != nil {
-			*portFlag = defaultPort
+				return err
+			}
+
+			*portFlag = v
+		}
+	}
+
+	if *bindFlag == defaultBind {
+		envBind := os.Getenv("BIND")
+		if envBind != "" {
+			*bindFlag = envBind
 		}
 	}
 
@@ -105,17 +181,35 @@ func startServer() {
 		*forceHTTPSFlag = true
 	}
 
-	address := *bindFlag + ":" + *portFlag
+	mux := http.NewServeMux()
+	mux.HandleFunc("/{$}", indexHandler)
+	mux.HandleFunc("/about", aboutHandler)
+	mux.HandleFunc("/about/{$}", aboutHandler)
+
+	address := fmt.Sprintf("%s:%d", *bindFlag, *portFlag)
 	fmt.Printf("Listening on %s\n", address)
-	log.Fatal(http.ListenAndServe(address, nil))
+
+	srv := &http.Server{
+		ReadTimeout:  5 * time.Second,
+		WriteTimeout: 5 * time.Second,
+		IdleTimeout:  30 * time.Second,
+		Handler:      mux,
+		Addr:         address,
+	}
+
+	return srv.ListenAndServe()
 }
 
 func main() {
-	kingpin.Parse()
+	flag.Parse()
 
 	if *versionFlag {
 		printVersion()
-	} else {
+		return
-		startServer()
+	}
+
+	err := startServer()
+	if err != nil {
+		log.Fatal(err)
 	}
 }