From 77125cdb30b40c7d0c3024a4e1ea5ae74a153092 Mon Sep 17 00:00:00 2001
From: Dominik Meyer <dmeyer@federationhq.de>
Date: Wed, 20 Dec 2023 13:37:33 +0100
Subject: [PATCH] ADD: initial commit

---
 Containerfile                | 32 +++++++++++++++++
 License                      | 21 ++++++++++++
 README.md                    | 50 +++++++++++++++++++++++++++
 scripts/createMSMTPconfig.sh | 66 ++++++++++++++++++++++++++++++++++++
 scripts/entryPoint.sh        | 19 +++++++++++
 5 files changed, 188 insertions(+)
 create mode 100644 Containerfile
 create mode 100644 License
 create mode 100644 README.md
 create mode 100755 scripts/createMSMTPconfig.sh
 create mode 100755 scripts/entryPoint.sh

diff --git a/Containerfile b/Containerfile
new file mode 100644
index 0000000..e4a413d
--- /dev/null
+++ b/Containerfile
@@ -0,0 +1,32 @@
+FROM docker.io/library/golang:alpine AS builder
+# 
+LABEL org.opencontainers.image.source=https://github.com/skx/rss2email/
+
+# Ensure we have git
+RUN apk update && apk add --no-cache git
+
+# checkout rss2email
+RUN git clone https://github.com/skx/rss2email.git  $GOPATH/src/github.com/skx/rss2email/
+
+# Create a working-directory
+WORKDIR $GOPATH/src/github.com/skx/rss2email/
+
+# Build the binary.
+RUN go build -o /go/bin/rss2email
+
+FROM alpine
+
+RUN apk update && apk add --no-cache msmtp tini bash
+
+# Create a working directory
+WORKDIR /app
+
+# Copy the binary.
+COPY --from=builder /go/bin/rss2email /app/
+ADD scripts/createMSMTPconfig.sh /createMSMTPconfig.sh
+ADD scripts/entryPoint.sh /entryPoint.sh
+
+RUN chmod +x /entryPoint.sh
+RUN chmod +x /createMSMTPconfig.sh
+
+ENTRYPOINT ["/sbin/tini", "--", "/entryPoint.sh"]
\ No newline at end of file
diff --git a/License b/License
new file mode 100644
index 0000000..8aa2645
--- /dev/null
+++ b/License
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) [year] [fullname]
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..47607b4
--- /dev/null
+++ b/README.md
@@ -0,0 +1,50 @@
+# RSS2Email Container Image
+
+This repository contains the Containerfile and associated scripts for a container image that runs [rss2email](https://github.com/skx/rss2email).
+
+The Containerfile is heavily based on the Dockerfile provided by [rss2email](https://github.com/skx/rss2email).
+
+## Author
+
+- Dominik Meyer <dmeyer@federationhq.de>
+
+
+## Prerequisites
+
+- Buildah
+
+## Usage
+
+### Building the Container Image
+
+You can build the container image using the following command:
+
+\```bash
+buildah bud -t rss2email:latest .
+\```
+
+### Running the Container
+
+You can create and run a container from this image with the following command:
+
+\```bash
+podman run -d --name rss2email rss2email:latest
+\```
+
+### Pushing the Container Image to a Registry
+
+With Buildah:
+
+\```bash
+buildah push rss2email:latest docker://<registry>/<username>/rss2email:latest
+\```
+
+Replace `<registry>` with the name of your Docker registry and `<username>` with your username on that registry.
+
+## Configuration
+
+The configuration of rss2email is done via environment variables. You can specify these on the Docker run command line with the `-e` option or define them in an environment variable file and specify that with the `--env-file` option.
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
diff --git a/scripts/createMSMTPconfig.sh b/scripts/createMSMTPconfig.sh
new file mode 100755
index 0000000..d05ff7a
--- /dev/null
+++ b/scripts/createMSMTPconfig.sh
@@ -0,0 +1,66 @@
+#!/bin/bash
+
+if  [ -z "${USE_MSMTP}" ]; then
+    exit 0;
+fi
+
+if [ -z "${MSMTP_SMTP_HOST}" ]; then
+    echo "missing required parameter <SMTP_HOST>"
+    exit 255
+fi
+
+if [ -z "${MSMTP_SMTP_PORT}" ]; then
+    MSMTP_SMTP_PORT=25
+fi
+
+
+if [ -z "${MSMTP_SMTP_FROM}" ]; then
+    echo "missing required parameter <SMTP_FROM>"
+    exit 255
+fi
+
+if [ -z "${MSMTP_SMTP_AUTH}" ]; then
+    MSMTP_SMTP_AUTH=off
+fi
+
+if [ -z "${MSMTP_SMTP_TLS}" ]; then
+    MSMTP_SMTP_TLS=off
+fi
+
+
+if [ "${MSMTP_SMTP_AUTH}" != "off" ]; then
+
+    if [ -z "${MSMTP_SMTP_USER}" ]; then
+        echo "missing required parameter <SMTP_USER>"
+        exit 255
+    fi
+
+    if [ -z "${MSMTP_SMTP_PASS}" ]; then
+        echo "missing required parameter <SMTP_PASS>"
+        exit 255
+    fi
+else 
+    MSMTP_SMTP_USER="dummy"
+    MSMTP_SMTP_PASS="dummy"
+fi
+
+cat > /etc/msmtprc <<EOF
+defaults
+auth ${MSMTP_SMTP_AUTH}
+tls ${MSMTP_SMTP_TLS}
+logfile /dev/stdout
+
+account default
+host ${MSMTP_SMTP_HOST}
+port ${MSMTP_SMTP_PORT}
+from ${MSMTP_SMTP_FROM}
+user ${MSMTP_SMTP_USER}
+password ${MSMTP_SMTP_PASS}
+EOF
+
+chmod 600 /etc/msmtprc
+
+
+# we use msmtp as a dropin replacement for sendmail
+rm /usr/sbin/sendmail
+ln -s /usr/bin/msmtp /usr/sbin/sendmail
diff --git a/scripts/entryPoint.sh b/scripts/entryPoint.sh
new file mode 100755
index 0000000..f5f4a3b
--- /dev/null
+++ b/scripts/entryPoint.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+/createMSMTPconfig.sh
+
+
+if [ -z ${RECIPIENTS} ]; then
+    echo "RECIPIENTS environment variable missing"
+    exit 255
+fi
+
+if [ -z ${FEEDS} ]; then
+    echo "FEEDS environment variable missing"
+    exit 255
+fi
+
+mkdir -p ~/.rss2email/
+echo ${FEEDS} > ~/.rss2email/feeds.txt
+
+/app/rss2email daemon ${RECIPIENTS}
\ No newline at end of file