update dockerfile and minor changes

.gitignore

 ergo.mprof
 /dist
 *.pem
+.dccache

Dockerfile

-## build Ergo
+## build ergo binary
 FROM golang:1.16-alpine AS build-env
 
-RUN apk add --no-cache git make curl sed
+RUN apk add -U --force-refresh --no-cache --purge --clean-protected -l -u make
 
-# copy ergo
-RUN mkdir -p /go/src/github.com/ergochat/ergo
+# copy ergo source
 WORKDIR /go/src/github.com/ergochat/ergo
-ADD . /go/src/github.com/ergochat/ergo/
+COPY . .
 
 # modify default config file so that it doesn't die on IPv6
 # and so it can be exposed via 6667 by default
-run sed -i 's/^\(\s*\)\"127.0.0.1:6667\":.*$/\1":6667":/' /go/src/github.com/ergochat/ergo/default.yaml
-run sed -i 's/^\s*\"\[::1\]:6667\":.*$//' /go/src/github.com/ergochat/ergo/default.yaml
+RUN sed -i 's/^\(\s*\)\"127.0.0.1:6667\":.*$/\1":6667":/' /go/src/github.com/ergochat/ergo/default.yaml && \
+    sed -i 's/^\s*\"\[::1\]:6667\":.*$//' /go/src/github.com/ergochat/ergo/default.yaml
 
 # compile
 RUN make
 
-
-
-## run Ergo
-FROM alpine:3.9
+## build ergo container
+FROM alpine:3.13
 
 # metadata
-LABEL maintainer="daniel@danieloaks.net"
-LABEL description="Ergo is a modern, experimental IRC server written in Go"
-
-# install latest updates and configure alpine
-RUN apk update
-RUN apk upgrade
-RUN mkdir /lib/modules
+LABEL maintainer="Daniel Oaks <daniel@danieloaks.net>,Daniel Thamdrup <dallemon@protonmail.com>" \
+      description="Ergo is a modern, experimental IRC server written in Go"
 
 # standard ports listened on
 EXPOSE 6667/tcp 6697/tcp
 
-# oragono itself
-RUN mkdir -p /ircd-bin
-COPY --from=build-env /go/bin/ergo /ircd-bin
+# ergo itself
+COPY --from=build-env /go/bin/ergo \
+                      /go/src/github.com/ergochat/ergo/default.yaml \
+                      /go/src/github.com/ergochat/ergo/distrib/docker/run.sh \
+                      /ircd-bin/
 COPY --from=build-env /go/src/github.com/ergochat/ergo/languages /ircd-bin/languages/
-COPY --from=build-env /go/src/github.com/ergochat/ergo/default.yaml /ircd-bin/default.yaml
-
-COPY distrib/docker/run.sh /ircd-bin/run.sh
-RUN chmod +x /ircd-bin/run.sh
 
 # running volume holding config file, db, certs
 VOLUME /ircd

README.md

 
 ### Platform Packages
 
-Some platforms/distros also have Oragono packages maintained for them:
+Some platforms/distros also have Ergo packages maintained for them:
 
 * Arch Linux [AUR](https://aur.archlinux.org/packages/oragono/) - Maintained by [Sean Enck (@enckse)](https://github.com/enckse).
 
 ### Using Docker
 
 A Dockerfile and example docker-compose recipe are available in the `distrib/docker` directory. Ergo is automatically published
-to Docker Hub at [oragono/oragono](https://hub.docker.com/r/oragono/oragono). For more information, see the distrib/docker
+to Docker Hub at [ergochat/ergo](https://hub.docker.com/r/ergochat/ergo). For more information, see the distrib/docker
 [README file](https://github.com/ergochat/ergo/blob/master/distrib/docker/README.md).
 
 ### From Source

distrib/docker/docker-compose.yml

-version: "3.2"
+version: "3.8"
 
 services:
-  oragono:
-    image: oragono/oragono:latest
+  ergo:
+    image: ergochat/ergo:latest
     ports:
       - "6667:6667/tcp"
       - "6697:6697/tcp"

distrib/docker/run.sh

 #!/bin/sh
 
-# start in right dir
-cd /ircd
-
 # make config file
 if [ ! -f "/ircd/ircd.yaml" ]; then
     awk '{gsub(/path: languages/,"path: /ircd-bin/languages")}1' /ircd-bin/default.yaml > /tmp/ircd.yaml