Initialize repository

.gitignore

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+volume/

Dockerfile

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+FROM alpine:latest
+
+VOLUME /volume/configuration
+
+WORKDIR /volume/configuration
+
+RUN set -xe \
+	&& addgroup --gid 2000 app \
+	&& adduser --uid 2000 --disabled-password --no-create-home --ingroup app app
+
+RUN set -xe \
+	&& apk update \
+	&& apk upgrade \
+	&& apk add --no-cache \
+		libcrypto1.1 libssl1.1 \
+	&& apk add --no-cache --repository http://dl-3.alpinelinux.org/alpine/edge/testing/ \
+		imapfilter \
+	&& apk del --progress --purge \
+	&& rm -rf /var/cache/apk/*
+
+USER app
+
+ENTRYPOINT ["imapfilter"]

LICENSE

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+ISC License (ISC)
+
+Copyright 2020 eikendev
+
+Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

Makefile

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+IMAGE := imapfilter
+
+.PHONY: build
+build:
+	podman build \
+		-t \
+		local/${IMAGE} .
+
+.PHONY: run
+run:
+	podman run \
+		-ti \
+		-v ./volume/config:/volume/config \
+		--rm \
+		--security-opt label=disable \
+		--name=${IMAGE} \
+		local/imapfilter

README.md

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+# About
+
+This image runs [imapfilter](https://github.com/lefcha/imapfilter), a tool for email filtering.
+It serves similar purposes as [Sieve](http://sieve.info/), but no server-side support is required.