Enable dqlite in dapper

Dockerfile.dapper

 FROM golang:1.12.12-alpine3.10
 
 RUN apk -U --no-cache add bash git gcc musl-dev docker vim less file curl wget ca-certificates jq linux-headers zlib-dev tar zip squashfs-tools npm coreutils \
-    python3 py3-pip python3-dev openssl-dev libffi-dev libseccomp libseccomp-dev make
+    python3 py3-pip python3-dev openssl-dev libffi-dev libseccomp libseccomp-dev make libuv-static
 RUN pip3 install 'tox==3.6.0'
 RUN apk -U --no-cache --repository http://dl-3.alpinelinux.org/alpine/edge/main/ add sqlite-dev sqlite-static
 RUN mkdir -p /go/src/golang.org/x && \
@@ -17,6 +17,13 @@ RUN if [ "${ARCH}" == "amd64" ]; then \
         curl -sL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s v1.15.0; \
     fi
 
+ARG DQLITE=true
+ENV DQLITE $DQLITE
+RUN if [ "$DQLITE" = true ]; then \
+        curl -sfL https://github.com/rancher/dqlite-build/releases/download/v1.1.0-r5/dqlite-${ARCH}.tgz | tar xzf - -C / && \
+        apk add --allow-untrusted /usr/local/packages/*.apk \
+    ;fi
+
 ENV DAPPER_RUN_ARGS --privileged -v k3s-cache:/go/src/github.com/rancher/k3s/.cache
 ENV DAPPER_ENV REPO TAG DRONE_TAG IMAGE_NAME SKIP_VALIDATE
 ENV DAPPER_SOURCE /go/src/github.com/rancher/k3s/