(maint) tidy build steps, fix permissions and add uninstall recipe

Dockerfile

@@ -6,7 +6,8 @@ RUN mkdir /root/.ssh && \
     chmod 700 /root/.ssh && \
     ssh-keygen -A
 COPY ssh-find-agent.sh /root/ssh-find-agent.sh
+COPY docker-entrypoint.sh /
 EXPOSE 22
 VOLUME ["/root/.ssh/authorized_keys"]
-ENTRYPOINT ["/usr/bin/tini","--"]
+ENTRYPOINT ["/sbin/tini", "--", "/docker-entrypoint.sh"]
 CMD ["/usr/sbin/sshd","-D"]

Makefile

@@ -7,11 +7,11 @@ BINDIR ?= $(PREFIX)/bin
 
 install:
 	@if [ ! -d "$(PREFIX)" ]; then echo Error: need a $(PREFIX) directory; exit 1; fi
-	@mkdir -p $(PREFIX)/share/pinata-ssh-agent
-	cp Dockerfile $(PREFIX)/share/pinata-ssh-agent
-	cp ssh-build.sh $(PREFIX)/share/pinata-ssh-agent/ssh-build
-	cp ssh-find-agent.sh $(PREFIX)/share/pinata-ssh-agent/ssh-find-agent.sh
 	@mkdir -p $(BINDIR)
-	cp pinata-build-sshd.sh $(BINDIR)/pinata-build-sshd
 	cp pinata-ssh-forward.sh $(BINDIR)/pinata-ssh-forward
 	cp pinata-ssh-mount.sh $(BINDIR)/pinata-ssh-mount
+
+uninstall:
+	@if [ ! -d "$(BINDIR)" ]; then echo Error: $(BINDIR) directory does not exist; exit 1; fi
+	rm $(BINDIR)/pinata-ssh-forward
+	rm $(BINDIR)/pinata-ssh-mount

docker-entrypoint.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+set -e
+chown root:root /root/.ssh/authorized_keys
+exec "$@" 

pinata-build-sshd.sh

@@ -1,4 +1,2 @@
 #!/bin/sh
-
-cd /usr/local/share/pinata-ssh-agent
 docker build -t pinata-sshd .

pinata-ssh-forward.sh

@@ -18,7 +18,7 @@ IP=`docker inspect --format '{{(index (index .NetworkSettings.Ports "22/tcp") 0)
 ssh-keyscan -p ${LOCAL_PORT} ${IP} > ${LOCAL_STATE}/known_hosts 2>/dev/null
 
 ssh -f -o "UserKnownHostsFile=${LOCAL_STATE}/known_hosts" \
-  -A -p ${LOCAL_PORT} root@${IP} \
+  -A -S none -p ${LOCAL_PORT} root@${IP} \
   /root/ssh-find-agent.sh
 
 echo 'Agent forwarding successfully started.'