deployment: optional support for sqlite

adds optional dockerfile and docker-compose with sqlite
support/config. adds make target for alternate build.

addresses sourcegraph#140

.dockerignore

@@ -0,0 +1,4 @@
+.github
+builds
+checks
+checkup.json

Makefile

@@ -25,3 +25,6 @@ test-%:
 
 docker:
 	docker build --no-cache . -t $(DOCKER_IMAGE)
+
+docker_sqlite:
+	docker build --no-cache -t $(DOCKER_IMAGE):sqlite3 -f sqlite3.Dockerfile .

docker-compose.sqlite3.yml

@@ -0,0 +1,28 @@
+version: "2.4"
+
+services:
+  #-- worker node
+  worker:
+    image: checkup:sqlite3
+    volumes:
+      - ./checkup.json:/app/checkup.json
+      - ./checks:/app/checks
+    entrypoint:
+      - checkup
+      - every
+      - 10s
+    user: "1000:1000"
+    restart: always
+
+  #-- client
+  checkup:
+    hostname: checkup
+    image: checkup:sqlite3
+    ports:
+      - 3000:3000
+    volumes:
+      - ./checkup.json:/app/checkup.json
+      - ./checks:/app/checks
+      - ./statuspage/js/config_sqlite3.js:/app/statuspage/js/config.js
+    user: "1000:1000"
+    restart: always

sqlite3.Dockerfile

@@ -0,0 +1,30 @@
+FROM golang:1.15-buster as builder
+
+COPY . /app
+WORKDIR /app
+RUN apt-get install make && make build-sqlite3
+
+#---------------------------- 
+FROM debian:buster
+
+# install sqlite 
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+    sqlite3 ca-certificates && \
+    apt-get autoremove && \
+    apt-get purge && \    
+    rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+COPY --from=builder /app/builds/checkup /usr/local/bin/checkup
+ADD statuspage/ /app/statuspage
+
+RUN addgroup --gid 1000 app 
+RUN adduser --no-create-home --uid 1000 --gecos "" --gid 1000 --disabled-password app 
+
+USER app
+
+EXPOSE 3000
+ENTRYPOINT ["checkup"]
+CMD ["serve"]

statuspage/js/config_sqlite3.js

@@ -0,0 +1,28 @@
+checkup.config = {
+	// How much history to show on the status page. Long durations and
+	// frequent checks make for slow loading, so be conservative.
+	// This value is in NANOSECONDS to mirror Go's time package.
+	"timeframe": 1 * time.Day,
+
+	// How often, in seconds, to pull new checks and update the page.
+	"refresh_interval": 60,
+
+	// Configure read-only access to stored checks. This configuration
+	// depends on your storage provider. Any credentials and other values
+	// here will be visible to everyone, so use keys with ONLY read access!
+	"storage": {
+		// Storage type (fs for local, s3 for AWS S3)
+		"type": "sqlite3",
+		// Local checkup server by default, set to github page if
+		// you're hosting your status page on GitHub.
+		// e.g. "https://sourcegraph.github.io/checkup/checks/"
+		"url": "/"
+	},
+
+	// The text to display along the top bar depending on overall status.
+	"status_text": {
+		"healthy": "Situation Normal",
+		"degraded": "Degraded Service",
+		"down": "Service Disruption"
+	}
+};