commit 8c8352fb572ec3eda88090e7cc2182eaa2cacf89
Author: Florian Overkamp <florian@overkamp.co>
Date:   Fri Feb 28 22:38:20 2025 +0100

    simple asterisk build for docker image, version 20-latest

diff --git a/.gitignore b/.gitignore
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--- /dev/null
+++ b/.gitignore
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+etc/
+log/
+spool/
diff --git a/20-debian/Dockerfile b/20-debian/Dockerfile
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index 0000000..04d0659
--- /dev/null
+++ b/20-debian/Dockerfile
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+FROM debian:bookworm-slim
+LABEL maintainer="Florian Overkamp <docker@flrn.eu>"
+
+ADD asterisk-wrapper.sh /usr/local/sbin/asterisk-wrapper.sh
+ADD asterisk-build.sh /usr/local/sbin/asterisk-build.sh
+
+RUN apt-get update && apt-get upgrade -y && \
+    apt-get -y install pkg-config curl msmtp sox mpg123 && \
+    asterisk-build.sh && rm /usr/local/sbin/asterisk-build.sh && \
+    cd /etc/asterisk && tar czf /etc/ast-conf.tgz *
+
+VOLUME /etc/asterisk
+VOLUME /var/spool/asterisk
+VOLUME /var/log/asterisk
+VOLUME /var/lib/asterisk/agi-bin
+VOLUME /var/lib/asterisk/sounds/prompts
+VOLUME /usr/local/bin
+
+EXPOSE 5060/udp
+EXPOSE 5060
+
+WORKDIR /etc/asterisk
+CMD ["/usr/local/sbin/asterisk-wrapper.sh"]
+
diff --git a/20-debian/asterisk-build.sh b/20-debian/asterisk-build.sh
new file mode 100755
index 0000000..663b932
--- /dev/null
+++ b/20-debian/asterisk-build.sh
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+#!/bin/bash
+
+apt-get -y install build-essential libssl-dev libedit-dev uuid-dev libxml2-dev libsqlite3-dev
+
+cd /usr/src
+curl -L http://downloads.asterisk.org/pub/telephony/asterisk/asterisk-20-current.tar.gz > asterisk.tar.gz
+tar zxf asterisk.tar.gz 
+cd asterisk-20.*
+# set compiler flags for cross system compatibility
+export ASTCFLAGS="-g -O2 -march=x86-64 -fstack-protector-strong -Wformat -Werror=format-security"
+# configure to use the bundled jansson libs (less dependancy on base image)
+./configure --with-jansson-bundled
+make
+make install
+make samples
+
+cd /usr/src
+rm -rf *
+
+apt-get -y purge build-essential
+apt -y autoremove
+
+adduser --system --home /var/lib/asterisk --shell /sbin/nologin --group asterisk
+chown -R asterisk:asterisk /var/lib/asterisk
+
diff --git a/20-debian/asterisk-wrapper.sh b/20-debian/asterisk-wrapper.sh
new file mode 100755
index 0000000..24b64c1
--- /dev/null
+++ b/20-debian/asterisk-wrapper.sh
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+#!/bin/bash
+
+echo "========================================="
+echo "    Asterisk container starting up       "
+echo "========================================="
+
+if [[ ! -f /etc/asterisk/asterisk.conf ]]
+then
+	# extract default distro config in volume
+	echo " -- No asterisk.conf found, unpacking distribution config for production"
+	cd /etc/asterisk
+	tar zxf /etc/ast-conf.tgz
+
+	# (also) extract default distro config in dpkg-dist for easy reference
+	rm -rf dpkg-dist
+	mkdir dpkg-dist
+	cd dpkg-dist
+	tar zxf /etc/ast-conf.tgz
+else
+	# extract default distro config in dpkg-dist for easy reference
+	echo " -- Existing asterisk.conf found, unpacking distribution config in reference folder"
+	cd /etc/asterisk
+	rm -rf dpkg-dist
+	mkdir dpkg-dist
+	cd dpkg-dist
+	tar zxf /etc/ast-conf.tgz
+fi
+
+# ensure cdr-csv subdir exists
+mkdir -p /var/log/asterisk/cdr-csv
+
+# fix permissions
+chown -R asterisk:asterisk /etc/asterisk
+chmod -R o+r /etc/asterisk
+chown -R asterisk:asterisk /var/spool/asterisk
+chmod -R o+r /var/spool/asterisk
+chown -R asterisk:asterisk /var/log/asterisk
+chmod -R o+r /var/log/asterisk
+
+# detect public IPv4 address and configure for sip
+if [ -z "$IP4" ]; then
+  IP4=`curl -4 -s http://icanhazip.com/`
+  echo " -- Detected external (public) IPv4 address $IP4 (requested from icanhazip)"
+  echo " -- You can override this by passing the IP4 environment variable with the desired address"
+else
+  echo " -- Detected external (public) IPv4 address $IP4 (set from environment)"
+fi
+sed -ri "s/external_media_address=(([0-9]{1,3}\.){3}[0-9]{1,3})/external_media_address=$IP4/g" /etc/asterisk/pjsip.conf
+sed -ri "s/external_signaling_address=(([0-9]{1,3}\.){3}[0-9]{1,3})/external_signaling_address=$IP4/g" /etc/asterisk/pjsip.conf
+
+# configure msmtp
+echo "account default" > /etc/msmtprc
+if [ -n "$SMARTHOST" ]; then
+  IFS=: read -r SMARTHOST_HOST SMARTHOST_PORT <<< "$SMARTHOST"
+  echo " -- Expanding '$SMARTHOST' as default SMTP relay"
+fi
+if [ -n "$SMARTHOST_HOST" ]; then
+  echo "host $SMARTHOST_HOST" >> /etc/msmtprc
+  echo " -- Set '$SMARTHOST_HOST' as default SMTP relay host"
+else 
+  echo "host mail" >> /etc/msmtprc
+  echo " -- Using 'mail' as default SMTP relay host"
+fi
+if [ -n "$SMARTHOST_PORT" ]; then
+  echo "port $SMARTHOST_PORT" >> /etc/msmtprc
+  echo " -- Set $SMARTHOST_PORT as default SMTP relay port"
+else 
+  echo "port 587" >> /etc/msmtprc
+  echo " -- Using 587 as default SMTP relay port"
+fi
+echo "from msmtp@asterisk" >> /etc/msmtprc
+# create symlink for asterisk to use
+ln -s /usr/bin/msmtp /usr/sbin/sendmail
+
+# go live
+echo " -- Launching Asterisk"
+/usr/sbin/asterisk -f -p -U asterisk
+
diff --git a/README.md b/README.md
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+++ b/README.md
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+# asterisk-docker
+A generic asterisk container build