Add initial dockerfile support

This provides a simple way to do quick cross-platform verification
of changes.

`make docker-debian` will build a debian image and run the tests
`make docker-fedora` will build a fedora image and run the tests

.dockerignore

@@ -0,0 +1 @@
+build/

Makefile

@@ -7,7 +7,7 @@ REPO := $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))
 
 PREFIX ?= /usr/local
 
-CC ?= cc 
+CC ?= cc
 CXX ?= c++
 
 SETCAP ?= which setcap && setcap cap_net_admin=+eip
@@ -68,7 +68,7 @@ debug-configure:
 	$(CONFIG_CMD) -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=$(CC) -DCMAKE_CXX_COMPILER=$(CXX) -DDNS_PORT=$(DNS_PORT) -DCMAKE_ASM_FLAGS='$(ASFLAGS)' -DCMAKE_C_FLAGS='$(CFLAGS)' -DCMAKE_CXX_FLAGS='$(CXXFLAGS)'
 
 release-configure: clean
-	mkdir -p '$(BUILD_ROOT)'	
+	mkdir -p '$(BUILD_ROOT)'
 	$(CONFIG_CMD) -DSTATIC_LINK=ON -DCMAKE_BUILD_TYPE=Release -DRELEASE_MOTTO="$(shell cat motto.txt)" -DCMAKE_C_COMPILER=$(CC) -DCMAKE_CXX_COMPILER=$(CXX) -DCMAKE_ASM_FLAGS='$(ASFLAGS)' -DCMAKE_C_FLAGS='$(CFLAGS)' -DCMAKE_CXX_FLAGS='$(CXXFLAGS)'
 
 debug: debug-configure
@@ -118,7 +118,7 @@ shared-configure: clean
 shared: shared-configure
 	$(MAKE) -C $(BUILD_ROOT)
 
-testnet: 
+testnet:
 	cp $(EXE) $(TESTNET_EXE)
 	mkdir -p $(TESTNET_ROOT)
 	python3 contrib/testnet/genconf.py --bin=$(TESTNET_EXE) --svc=$(TESTNET_SERVERS) --clients=$(TESTNET_CLIENTS) --dir=$(TESTNET_ROOT) --out $(TESTNET_CONF) --connect=4
@@ -142,6 +142,12 @@ lint: $(LINT_CHECK)
 %.cpp-check: %.cpp
 	clang-tidy $^ -- -I$(REPO)/include -I$(REPO)/crypto/libntrup/include -I$(REPO)/llarp
 
+docker-debian:
+	docker build -f docker/debian.Dockerfile .
+
+docker-fedora:
+	docker build -f docker/fedora.Dockerfile .
+
 install:
 	rm -f $(PREFIX)/bin/lokinet
 	cp $(EXE) $(PREFIX)/bin/lokinet

docker/debian.Dockerfile

@@ -0,0 +1,10 @@
+FROM debian:latest
+
+RUN apt update && \
+    apt install -y build-essential cmake git libcap-dev wget rapidjson-dev
+
+WORKDIR /src/
+
+COPY . /src/
+
+RUN make -j 8 JSONRPC=ON

docker/fedora.Dockerfile

@@ -0,0 +1,11 @@
+FROM fedora:latest
+
+RUN dnf update -y && \
+    dnf upgrade -y && \
+    dnf install -y cmake make git gcc gcc-c++ libcap-devel wget rapidjson-devel
+
+WORKDIR /src/
+
+COPY . /src/
+
+RUN make -j8 JSONRPC=ON