diff --git a/1.2.40 b/1.2.40
new file mode 120000
index 0000000..c10def9
--- /dev/null
+++ b/1.2.40
@@ -0,0 +1 @@
+centos7-1.2.40
\ No newline at end of file
diff --git a/1.4.44 b/1.4.44
new file mode 120000
index 0000000..278a281
--- /dev/null
+++ b/1.4.44
@@ -0,0 +1 @@
+centos7-1.4.44
\ No newline at end of file
diff --git a/1.6.2.24 b/1.6.2.24
new file mode 120000
index 0000000..8fa72d2
--- /dev/null
+++ b/1.6.2.24
@@ -0,0 +1 @@
+centos7-1.6.2.24
\ No newline at end of file
diff --git a/11-slim b/11-slim
new file mode 120000
index 0000000..4ff09c4
--- /dev/null
+++ b/11-slim
@@ -0,0 +1 @@
+alpine-2.7-11.x
\ No newline at end of file
diff --git a/13-current b/13-current
new file mode 120000
index 0000000..a596653
--- /dev/null
+++ b/13-current
@@ -0,0 +1 @@
+debian-stretch-slim-13-current
\ No newline at end of file
diff --git a/14-current b/14-current
new file mode 120000
index 0000000..f5972ca
--- /dev/null
+++ b/14-current
@@ -0,0 +1 @@
+debian-stretch-slim-14-current
\ No newline at end of file
diff --git a/14-slim b/14-slim
new file mode 120000
index 0000000..133bf64
--- /dev/null
+++ b/14-slim
@@ -0,0 +1 @@
+alpine-3.6-14.x
\ No newline at end of file
diff --git a/15-current b/15-current
new file mode 120000
index 0000000..5b66ecc
--- /dev/null
+++ b/15-current
@@ -0,0 +1 @@
+debian-stretch-slim-15-current
\ No newline at end of file
diff --git a/15-slim b/15-slim
new file mode 120000
index 0000000..d9d1171
--- /dev/null
+++ b/15-slim
@@ -0,0 +1 @@
+alpine-3.9-15.x
\ No newline at end of file
diff --git a/16-current b/16-current
new file mode 120000
index 0000000..c19dc1a
--- /dev/null
+++ b/16-current
@@ -0,0 +1 @@
+debian-buster-slim-16-current
\ No newline at end of file
diff --git a/alpine-3.9-15.x/Dockerfile b/alpine-3.9-15.x/Dockerfile
new file mode 100644
index 0000000..f2f179b
--- /dev/null
+++ b/alpine-3.9-15.x/Dockerfile
@@ -0,0 +1,28 @@
+# vim:set ft=dockerfile:
+FROM alpine:3.9
+
+MAINTAINER Andrius Kairiukstis <andrius@kairiukstis.com>
+
+RUN apk add --update \
+      asterisk \
+      asterisk-sample-config \
+&& asterisk -U asterisk \
+&& sleep 5 \
+&& pkill -9 asterisk \
+&& pkill -9 astcanary \
+&& sleep 2 \
+&& rm -rf /var/run/asterisk/* \
+&& mkdir -p /var/spool/asterisk/fax \
+&& chown -R asterisk: /var/spool/asterisk/fax \
+&& truncate -s 0 /var/log/asterisk/messages \
+                 /var/log/asterisk/queue_log \
+&&  rm -rf /var/cache/apk/* \
+           /tmp/* \
+           /var/tmp/*
+
+EXPOSE 5060/udp 5060/tcp
+VOLUME /var/lib/asterisk/sounds /var/lib/asterisk/keys /var/lib/asterisk/phoneprov /var/spool/asterisk /var/log/asterisk
+
+ADD docker-entrypoint.sh /docker-entrypoint.sh
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
diff --git a/alpine-3.9-15.x/alpine-3.8-15.x/Dockerfile b/alpine-3.9-15.x/alpine-3.8-15.x/Dockerfile
new file mode 100644
index 0000000..b7360ba
--- /dev/null
+++ b/alpine-3.9-15.x/alpine-3.8-15.x/Dockerfile
@@ -0,0 +1,28 @@
+# vim:set ft=dockerfile:
+FROM alpine:3.8
+
+MAINTAINER Andrius Kairiukstis <andrius@kairiukstis.com>
+
+RUN apk add --update \
+      asterisk \
+      asterisk-sample-config \
+&& asterisk -U asterisk \
+&& sleep 5 \
+&& pkill -9 asterisk \
+&& pkill -9 astcanary \
+&& sleep 2 \
+&& rm -rf /var/run/asterisk/* \
+&& mkdir -p /var/spool/asterisk/fax \
+&& chown -R asterisk: /var/spool/asterisk/fax \
+&& truncate -s 0 /var/log/asterisk/messages \
+                 /var/log/asterisk/queue_log \
+&&  rm -rf /var/cache/apk/* \
+           /tmp/* \
+           /var/tmp/*
+
+EXPOSE 5060/udp 5060/tcp
+VOLUME /var/lib/asterisk/sounds /var/lib/asterisk/keys /var/lib/asterisk/phoneprov /var/spool/asterisk /var/log/asterisk
+
+ADD docker-entrypoint.sh /docker-entrypoint.sh
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
diff --git a/alpine-3.9-15.x/alpine-3.8-15.x/docker-entrypoint.sh b/alpine-3.9-15.x/alpine-3.8-15.x/docker-entrypoint.sh
new file mode 100755
index 0000000..f08b45e
--- /dev/null
+++ b/alpine-3.9-15.x/alpine-3.8-15.x/docker-entrypoint.sh
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+# run as user asterisk by default
+ASTERISK_USER=${ASTERISK_USER:-asterisk}
+ASTERISK_GROUP=${ASTERISK_GROUP:-${ASTERISK_USER}}
+
+if [ "$1" = "" ]; then
+  COMMAND="/usr/sbin/asterisk -T -W -U ${ASTERISK_USER} -p -vvvdddf"
+else
+  COMMAND="$@"
+fi
+
+if [ "${ASTERISK_UID}" != "" ] && [ "${ASTERISK_GID}" != "" ]; then
+  # recreate user and group for asterisk
+  # if they've sent as env variables (i.e. to macth with host user to fix permissions for mounted folders
+
+  deluser asterisk && \
+  addgroup -g ${ASTERISK_GID} ${ASTERISK_GROUP} && \
+  adduser -D -H -u ${ASTERISK_UID} -G ${ASTERISK_GROUP} ${ASTERISK_USER} \
+  || exit
+fi
+
+chown -R ${ASTERISK_USER}: /var/log/asterisk \
+                           /var/lib/asterisk \
+                           /var/run/asterisk \
+                           /var/spool/asterisk; \
+exec ${COMMAND}
diff --git a/alpine-3.9-15.x/docker-entrypoint.sh b/alpine-3.9-15.x/docker-entrypoint.sh
new file mode 100755
index 0000000..f08b45e
--- /dev/null
+++ b/alpine-3.9-15.x/docker-entrypoint.sh
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+# run as user asterisk by default
+ASTERISK_USER=${ASTERISK_USER:-asterisk}
+ASTERISK_GROUP=${ASTERISK_GROUP:-${ASTERISK_USER}}
+
+if [ "$1" = "" ]; then
+  COMMAND="/usr/sbin/asterisk -T -W -U ${ASTERISK_USER} -p -vvvdddf"
+else
+  COMMAND="$@"
+fi
+
+if [ "${ASTERISK_UID}" != "" ] && [ "${ASTERISK_GID}" != "" ]; then
+  # recreate user and group for asterisk
+  # if they've sent as env variables (i.e. to macth with host user to fix permissions for mounted folders
+
+  deluser asterisk && \
+  addgroup -g ${ASTERISK_GID} ${ASTERISK_GROUP} && \
+  adduser -D -H -u ${ASTERISK_UID} -G ${ASTERISK_GROUP} ${ASTERISK_USER} \
+  || exit
+fi
+
+chown -R ${ASTERISK_USER}: /var/log/asterisk \
+                           /var/lib/asterisk \
+                           /var/run/asterisk \
+                           /var/spool/asterisk; \
+exec ${COMMAND}
diff --git a/build-and-push.sh b/build-and-push.sh
new file mode 100755
index 0000000..25ff58a
--- /dev/null
+++ b/build-and-push.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+# https://stackoverflow.com/questions/4000613/bash-for-each-directory
+for DIR in *; do
+  if [ -d "${DIR}" ]; then
+    TAG=${DIR}
+    cd ${TAG}
+
+    docker build --pull --force-rm -t andrius/asterisk:${TAG} --file ./Dockerfile . && \
+    docker run -d --rm --name asterisk-${TAG} andrius/asterisk:${TAG} && \
+    sleep 5 && \
+    docker exec -ti asterisk-${TAG} sh -c 'cat /etc/iss*' && \
+    docker exec -ti asterisk-${TAG} sh -c 'asterisk -rx "core show version"; exit $?' && echo "ok $?" || echo "not ok" ; \
+    docker stop asterisk-${TAG}; \
+    docker push andrius/asterisk:${TAG}; \
+    docker rmi -f andrius/asterisk:${TAG}
+
+    cd ..
+  fi
+done
+
diff --git a/build.sh b/build.sh
index 9b12b96..70e7cb2 100755
--- a/build.sh
+++ b/build.sh
@@ -6,7 +6,7 @@ cd ${TAG} && \
 docker build --pull --force-rm -t andrius/asterisk:${TAG} --file ./Dockerfile . && \
 docker run -d --rm --name asterisk-${TAG} andrius/asterisk:${TAG} && \
 sleep 3 && \
-docker exec -ti asterisk-${TAG} sh -c "cat /etc/iss*"; \
-docker exec -ti asterisk-${TAG} sh -c "asterisk -rx 'core show version'"; \
+docker exec -ti asterisk-${TAG} sh -c 'cat /etc/iss*' && \
+docker exec -ti asterisk-${TAG} sh -c 'asterisk -rx "core show version"; exit $?' && echo "ok $?" || echo "not ok" ; \
 docker stop asterisk-${TAG}; \
 cd ..
diff --git a/centos7-1.2.40/Dockerfile b/centos7-1.2.40/Dockerfile
new file mode 100644
index 0000000..e6ede0b
--- /dev/null
+++ b/centos7-1.2.40/Dockerfile
@@ -0,0 +1,17 @@
+# vim:set ft=dockerfile:
+FROM centos:7
+
+LABEL maintainer="Andrius Kairiukstis <k@andrius.mobi>"
+
+ENV ASTERISK_VERSION 1.2.40
+ENV ASTERISK_ADDONS_VERSION 1.2.9
+
+COPY build-asterisk.sh /
+RUN /build-asterisk.sh
+
+EXPOSE 5060/udp 5060/tcp
+VOLUME /var/lib/asterisk/sounds /var/lib/asterisk/keys /var/lib/asterisk/phoneprov /var/spool/asterisk /var/log/asterisk
+
+COPY docker-entrypoint.sh /
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["/usr/sbin/asterisk", "-vvvdddf", "-T", "-U", "asterisk", "-p"]
diff --git a/centos7-1.2.40/build-asterisk.sh b/centos7-1.2.40/build-asterisk.sh
new file mode 100755
index 0000000..10e4acc
--- /dev/null
+++ b/centos7-1.2.40/build-asterisk.sh
@@ -0,0 +1,78 @@
+#!/bin/bash
+PROGNAME=$(basename $0)
+
+if test -z ${ASTERISK_VERSION}; then
+  echo "${PROGNAME}: ASTERISK_VERSION required" >&2
+  exit 1
+fi
+
+set -ex
+
+useradd --system asterisk
+
+yum -y install \
+  cpp \
+  gcc \
+  gcc-c++ \
+  make \
+  ncurses \
+  ncurses-devel \
+  libxml2 \
+  libxml2-devel \
+  openssl-devel \
+  newt-devel \
+  libuuid-devel \
+  net-snmp-devel \
+  xinetd \
+  tar \
+  libffi-devel \
+  sqlite-devel \
+  curl \
+  bison
+
+mkdir -p /usr/src/asterisk \
+         /usr/src/asterisk/addons
+
+cd /usr/src/asterisk/addons
+curl -vsL http://downloads.asterisk.org/pub/telephony/asterisk/old-releases/asterisk-addons-${ASTERISK_ADDONS_VERSION}.tar.gz | tar --strip-components 1 -xz
+
+cd /usr/src/asterisk
+curl -vsL http://downloads.asterisk.org/pub/telephony/asterisk/old-releases/asterisk-${ASTERISK_VERSION}.tar.gz | tar --strip-components 1 -xz
+
+# 1.5 jobs per core works out okay
+: ${JOBS:=$(( $(nproc) + $(nproc) / 2 ))}
+
+mkdir -p /etc/asterisk/ \
+         /var/spool/asterisk/fax
+
+make -j ${JOBS} all
+make install
+
+# copy default configs
+# cp /usr/src/asterisk/configs/basic-pbx/*.conf /etc/asterisk/
+make samples
+
+cd /usr/src/asterisk/addons
+
+make -j ${JOBS} all
+make install
+# make samples
+
+cd /usr/src/asterisk/addons/asterisk-ooh323c/
+./configure
+make -j ${JOBS} all
+make install
+make sample
+
+chown -R asterisk:asterisk /etc/asterisk \
+                           /var/*/asterisk \
+                           /usr/*/asterisk
+chmod -R 750 /var/spool/asterisk
+
+cd /
+rm -rf /usr/src/asterisk
+
+yum -y clean all
+rm -rf /var/cache/yum/*
+
+exec rm -f /build-asterisk.sh
diff --git a/centos7-1.2.40/docker-entrypoint.sh b/centos7-1.2.40/docker-entrypoint.sh
new file mode 100755
index 0000000..f1f82f4
--- /dev/null
+++ b/centos7-1.2.40/docker-entrypoint.sh
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+# run as user asterisk by default
+ASTERISK_USER=${ASTERISK_USER:-asterisk}
+
+if [ "$1" = "" ]; then
+  COMMAND="/usr/sbin/asterisk -T -W -U ${ASTERISK_USER} -p -vvvdddf"
+else
+  COMMAND="$@"
+fi
+
+if [ "${ASTERISK_UID}" != "" ] && [ "${ASTERISK_GID}" != "" ]; then
+  # recreate user and group for asterisk
+  # if they've sent as env variables (i.e. to macth with host user to fix permissions for mounted folders
+
+  deluser asterisk && \
+  adduser --gecos "" --no-create-home --uid ${ASTERISK_UID} --disabled-password ${ASTERISK_USER} \
+  || exit
+fi
+
+chown -R ${ASTERISK_USER}: /var/log/asterisk \
+                           /var/lib/asterisk \
+                           /var/run/asterisk \
+                           /var/spool/asterisk; \
+exec ${COMMAND}
diff --git a/centos7-1.4.44/Dockerfile b/centos7-1.4.44/Dockerfile
new file mode 100644
index 0000000..3255d64
--- /dev/null
+++ b/centos7-1.4.44/Dockerfile
@@ -0,0 +1,17 @@
+# vim:set ft=dockerfile:
+FROM centos:7
+
+LABEL maintainer="Andrius Kairiukstis <k@andrius.mobi>"
+
+ENV ASTERISK_VERSION 1.4.44
+ENV ASTERISK_ADDONS_VERSION 1.4.13
+
+COPY build-asterisk.sh /
+RUN /build-asterisk.sh
+
+EXPOSE 5060/udp 5060/tcp
+VOLUME /var/lib/asterisk/sounds /var/lib/asterisk/keys /var/lib/asterisk/phoneprov /var/spool/asterisk /var/log/asterisk
+
+COPY docker-entrypoint.sh /
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["/usr/sbin/asterisk", "-vvvdddf", "-T", "-U", "asterisk", "-p"]
diff --git a/centos7-1.4.44/build-asterisk.sh b/centos7-1.4.44/build-asterisk.sh
new file mode 100755
index 0000000..ed8f051
--- /dev/null
+++ b/centos7-1.4.44/build-asterisk.sh
@@ -0,0 +1,90 @@
+#!/bin/bash
+PROGNAME=$(basename $0)
+
+if test -z ${ASTERISK_VERSION}; then
+  echo "${PROGNAME}: ASTERISK_VERSION required" >&2
+  exit 1
+fi
+
+set -ex
+
+useradd --system asterisk
+
+yum -y install \
+  cpp \
+  gcc \
+  gcc-c++ \
+  make \
+  ncurses \
+  ncurses-devel \
+  libxml2 \
+  libxml2-devel \
+  openssl-devel \
+  newt-devel \
+  libuuid-devel \
+  net-snmp-devel \
+  xinetd \
+  tar \
+  libffi-devel \
+  sqlite-devel \
+  curl \
+  bison
+
+mkdir -p /usr/src/asterisk \
+         /usr/src/asterisk/addons
+
+cd /usr/src/asterisk/addons
+curl -vsL http://downloads.asterisk.org/pub/telephony/asterisk/old-releases/asterisk-addons-${ASTERISK_ADDONS_VERSION}.tar.gz | tar --strip-components 1 -xz
+
+cd /usr/src/asterisk
+curl -vsL http://downloads.asterisk.org/pub/telephony/asterisk/old-releases/asterisk-${ASTERISK_VERSION}.tar.gz | tar --strip-components 1 -xz
+
+# 1.5 jobs per core works out okay
+: ${JOBS:=$(( $(nproc) + $(nproc) / 2 ))}
+
+mkdir -p /etc/asterisk/ \
+         /var/spool/asterisk/fax
+
+./configure --libdir=/usr/lib64
+make menuselect/menuselect menuselect-tree menuselect.makeopts
+
+# we don't need any sounds in docker, they will be mounted as volume
+menuselect/menuselect --disable-category MENUSELECT_CORE_SOUNDS menuselect.makeopts
+menuselect/menuselect --disable-category MENUSELECT_MOH menuselect.makeopts
+menuselect/menuselect --disable-category MENUSELECT_EXTRA_SOUNDS menuselect.makeopts
+
+make -j ${JOBS} all
+make install
+
+# copy default configs
+# cp /usr/src/asterisk/configs/basic-pbx/*.conf /etc/asterisk/
+make samples
+make dist-clean
+
+# set runuser and rungroup
+sed -i -E 's/^;(run)(user|group)/\1\2/' /etc/asterisk/asterisk.conf
+sed -i -e 's/# MAXFILES=/MAXFILES=/' /usr/sbin/safe_asterisk
+
+cd /usr/src/asterisk/addons
+
+./configure --libdir=/usr/lib64
+make menuselect/menuselect menuselect-tree menuselect.makeopts
+
+make -j ${JOBS} all
+make install
+make samples
+
+chown -R asterisk:asterisk /etc/asterisk \
+                           /var/*/asterisk \
+                           /usr/*/asterisk \
+                           /usr/lib64/asterisk
+chmod -R 750 /var/spool/asterisk
+
+cd /
+rm -rf /usr/src/asterisk \
+       /usr/src/codecs
+
+yum -y clean all
+rm -rf /var/cache/yum/*
+
+exec rm -f /build-asterisk.sh
diff --git a/centos7-1.4.44/docker-entrypoint.sh b/centos7-1.4.44/docker-entrypoint.sh
new file mode 100755
index 0000000..f1f82f4
--- /dev/null
+++ b/centos7-1.4.44/docker-entrypoint.sh
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+# run as user asterisk by default
+ASTERISK_USER=${ASTERISK_USER:-asterisk}
+
+if [ "$1" = "" ]; then
+  COMMAND="/usr/sbin/asterisk -T -W -U ${ASTERISK_USER} -p -vvvdddf"
+else
+  COMMAND="$@"
+fi
+
+if [ "${ASTERISK_UID}" != "" ] && [ "${ASTERISK_GID}" != "" ]; then
+  # recreate user and group for asterisk
+  # if they've sent as env variables (i.e. to macth with host user to fix permissions for mounted folders
+
+  deluser asterisk && \
+  adduser --gecos "" --no-create-home --uid ${ASTERISK_UID} --disabled-password ${ASTERISK_USER} \
+  || exit
+fi
+
+chown -R ${ASTERISK_USER}: /var/log/asterisk \
+                           /var/lib/asterisk \
+                           /var/run/asterisk \
+                           /var/spool/asterisk; \
+exec ${COMMAND}
diff --git a/centos7-1.6.2.24/Dockerfile b/centos7-1.6.2.24/Dockerfile
new file mode 100644
index 0000000..7cacc36
--- /dev/null
+++ b/centos7-1.6.2.24/Dockerfile
@@ -0,0 +1,17 @@
+# vim:set ft=dockerfile:
+FROM centos:7
+
+LABEL maintainer="Andrius Kairiukstis <k@andrius.mobi>"
+
+ENV ASTERISK_VERSION 1.6.2.24
+ENV ASTERISK_ADDONS_VERSION 1.6.2.4
+
+COPY build-asterisk.sh /
+RUN /build-asterisk.sh
+
+EXPOSE 5060/udp 5060/tcp
+VOLUME /var/lib/asterisk/sounds /var/lib/asterisk/keys /var/lib/asterisk/phoneprov /var/spool/asterisk /var/log/asterisk
+
+COPY docker-entrypoint.sh /
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["/usr/sbin/asterisk", "-vvvdddf", "-T", "-W", "-U", "asterisk", "-p"]
diff --git a/centos7-1.6.2.24/build-asterisk.sh b/centos7-1.6.2.24/build-asterisk.sh
new file mode 100755
index 0000000..3b02f1c
--- /dev/null
+++ b/centos7-1.6.2.24/build-asterisk.sh
@@ -0,0 +1,96 @@
+#!/bin/bash
+PROGNAME=$(basename $0)
+
+if test -z ${ASTERISK_VERSION}; then
+  echo "${PROGNAME}: ASTERISK_VERSION required" >&2
+  exit 1
+fi
+
+set -ex
+
+useradd --system asterisk
+
+yum -y install \
+  cpp \
+  gcc \
+  gcc-c++ \
+  make \
+  ncurses \
+  ncurses-devel \
+  libxml2 \
+  libxml2-devel \
+  openssl-devel \
+  newt-devel \
+  libuuid-devel \
+  net-snmp-devel \
+  xinetd \
+  tar \
+  libffi-devel \
+  sqlite-devel \
+  curl \
+  bison
+
+mkdir -p /usr/src/asterisk \
+         /usr/src/asterisk/addons
+
+cd /usr/src/asterisk/addons
+curl -vsL http://downloads.asterisk.org/pub/telephony/asterisk/old-releases/asterisk-addons-${ASTERISK_ADDONS_VERSION}.tar.gz | tar --strip-components 1 -xz
+
+cd /usr/src/asterisk
+curl -vsL http://downloads.asterisk.org/pub/telephony/asterisk/old-releases/asterisk-${ASTERISK_VERSION}.tar.gz | tar --strip-components 1 -xz
+
+# 1.5 jobs per core works out okay
+: ${JOBS:=$(( $(nproc) + $(nproc) / 2 ))}
+
+mkdir -p /etc/asterisk/ \
+         /var/spool/asterisk/fax
+
+./configure --libdir=/usr/lib64
+make menuselect/menuselect menuselect-tree menuselect.makeopts
+
+# we don't need any sounds in docker, they will be mounted as volume
+menuselect/menuselect --disable-category MENUSELECT_CORE_SOUNDS menuselect.makeopts
+menuselect/menuselect --disable-category MENUSELECT_MOH menuselect.makeopts
+menuselect/menuselect --disable-category MENUSELECT_EXTRA_SOUNDS menuselect.makeopts
+
+make -j ${JOBS} all
+make install
+
+# copy default configs
+# cp /usr/src/asterisk/configs/basic-pbx/*.conf /etc/asterisk/
+make samples
+make dist-clean
+
+# set runuser and rungroup
+sed -i -E 's/^;(run)(user|group)/\1\2/' /etc/asterisk/asterisk.conf
+sed -i -e 's/# MAXFILES=/MAXFILES=/' /usr/sbin/safe_asterisk
+
+cd /usr/src/asterisk/addons
+
+./configure --libdir=/usr/lib64
+make menuselect/menuselect menuselect-tree menuselect.makeopts
+
+# disable saycountpl
+menuselect/menuselect --disable app_saycountpl
+
+# enable ooh323
+menuselect/menuselect --enable chan_ooh323 menuselect.makeopts
+
+make -j ${JOBS} all
+make install
+make samples
+
+chown -R asterisk:asterisk /etc/asterisk \
+                           /var/*/asterisk \
+                           /usr/*/asterisk \
+                           /usr/lib64/asterisk
+chmod -R 750 /var/spool/asterisk
+
+cd /
+rm -rf /usr/src/asterisk \
+       /usr/src/codecs
+
+yum -y clean all
+rm -rf /var/cache/yum/*
+
+exec rm -f /build-asterisk.sh
diff --git a/centos7-1.6.2.24/docker-entrypoint.sh b/centos7-1.6.2.24/docker-entrypoint.sh
new file mode 100755
index 0000000..f1f82f4
--- /dev/null
+++ b/centos7-1.6.2.24/docker-entrypoint.sh
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+# run as user asterisk by default
+ASTERISK_USER=${ASTERISK_USER:-asterisk}
+
+if [ "$1" = "" ]; then
+  COMMAND="/usr/sbin/asterisk -T -W -U ${ASTERISK_USER} -p -vvvdddf"
+else
+  COMMAND="$@"
+fi
+
+if [ "${ASTERISK_UID}" != "" ] && [ "${ASTERISK_GID}" != "" ]; then
+  # recreate user and group for asterisk
+  # if they've sent as env variables (i.e. to macth with host user to fix permissions for mounted folders
+
+  deluser asterisk && \
+  adduser --gecos "" --no-create-home --uid ${ASTERISK_UID} --disabled-password ${ASTERISK_USER} \
+  || exit
+fi
+
+chown -R ${ASTERISK_USER}: /var/log/asterisk \
+                           /var/lib/asterisk \
+                           /var/run/asterisk \
+                           /var/spool/asterisk; \
+exec ${COMMAND}
diff --git a/debian-buster-slim-16-current/Dockerfile b/debian-buster-slim-16-current/Dockerfile
new file mode 100644
index 0000000..067cdf0
--- /dev/null
+++ b/debian-buster-slim-16-current/Dockerfile
@@ -0,0 +1,17 @@
+# vim:set ft=dockerfile:
+FROM debian:buster-slim
+
+LABEL maintainer="Andrius Kairiukstis <k@andrius.mobi>"
+
+ENV ASTERISK_VERSION 16-current
+ENV OPUS_CODEC       asterisk-16.0/x86-64/codec_opus-16.0_current-x86_64
+
+COPY build-asterisk.sh /
+RUN /build-asterisk.sh
+
+EXPOSE 5060/udp 5060/tcp
+VOLUME /var/lib/asterisk/sounds /var/lib/asterisk/keys /var/lib/asterisk/phoneprov /var/spool/asterisk /var/log/asterisk
+
+COPY docker-entrypoint.sh /
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["/usr/sbin/asterisk", "-vvvdddf", "-T", "-W", "-U", "asterisk", "-p"]
diff --git a/debian-buster-slim-16-current/Dockerfile-centos b/debian-buster-slim-16-current/Dockerfile-centos
new file mode 100644
index 0000000..0257721
--- /dev/null
+++ b/debian-buster-slim-16-current/Dockerfile-centos
@@ -0,0 +1,145 @@
+FROM centos:6
+
+MAINTAINER Andrius Kairiukstis <andrius@kairiukstis.com>
+
+RUN yum -y install gcc gcc-c++ cpp ncurses ncurses-devel libxml2 libxml2-devel openssl-devel \
+      newt-devel libuuid-devel net-snmp-devel xinetd tar libffi-devel sqlite-devel curl bison supervisor \
+  && mkdir /tmp/asterisk \
+  && curl -sf -o /tmp/asterisk.tar.gz -L http://downloads.asterisk.org/pub/telephony/certified-asterisk/certified-asterisk-11.6-current.tar.gz \
+  && tar -xzf /tmp/asterisk.tar.gz -C /tmp/asterisk --strip-components=1 \
+  && cd /tmp/asterisk \
+  && ./configure --libdir=/usr/lib64 \
+  && make menuselect \
+  && menuselect/menuselect \
+    --disable-all \
+    --disable-category MENUSELECT_ADDONS \
+    --disable-category MENUSELECT_APPS \
+    --disable-category MENUSELECT_BRIDGES \
+    --disable-category MENUSELECT_CDR \
+    --disable-category MENUSELECT_CEL \
+    --disable-category MENUSELECT_CHANNELS \
+    --enable-category MENUSELECT_CODECS \
+    --enable-category MENUSELECT_FORMATS \
+    --disable-category MENUSELECT_FUNCS \
+    --disable-category MENUSELECT_PBX \
+    --disable-category MENUSELECT_RES \
+    --disable-category MENUSELECT_TESTS \
+    --disable-category MENUSELECT_UTILS \
+    --disable-category MENUSELECT_AGIS \
+    --disable-category MENUSELECT_EMBED \
+    --enable-category MENUSELECT_CORE_SOUNDS \
+    --enable-category MENUSELECT_MOH \
+    --enable-category MENUSELECT_EXTRA_SOUNDS \
+    --disable-category MENUSELECT_TESTS \
+    --enable-category MENUSELECT_OPTS_app_voicemail \
+    --enable func_module \
+    --enable LOADABLE_MODULES \
+    --enable FILE_STORAGE \
+    --disable codec_dahdi \
+    --enable app_dial \
+    --enable app_exec \
+    --enable app_originate \
+    --enable app_verbose \
+    --enable chan_sip \
+    --enable pbx_config \
+    --enable res_agi \
+    --enable res_convert \
+    --enable res_musiconhold \
+    --enable res_timing_timerfd \
+    --disable BUILD_NATIVE \
+  menuselect.makeopts \
+  && make config \
+  && make \
+  && make install \
+  && mkdir -p /var/lib/asterisk/phoneprov \
+  && make samples \
+  && make dist-clean \
+  && sed -i -e 's/# MAXFILES=/MAXFILES=/' /usr/sbin/safe_asterisk \
+  && cd .. \
+  && rm /tmp/asterisk.tar.gz \
+  && rm -rf /tmp/asterisk \
+  && yum -y clean all \
+  && rm -rf /var/cache/yum/*
+
+
+# RUN  yum -y update \
+#   && yum -y install epel-release \
+#   && yum -y install kernel-headers gcc gcc-c++ cpp ncurses ncurses-devel libxml2 libxml2-devel sqlite sqlite-devel \
+#        mysql-devel openssl-devel newt-devel kernel-devel libuuid-devel net-snmp-devel xinetd tar libffi-devel \
+#        curl pcre-devel bison mysql-devel ngrep tmux \
+#   && mkdir /tmp/asterisk \
+#   && curl -sf -o /tmp/asterisk.tar.gz -L http://downloads.asterisk.org/pub/telephony/certified-asterisk/certified-asterisk-11.6-current.tar.gz \
+#   && tar -xzf /tmp/asterisk.tar.gz -C /tmp/asterisk --strip-components=1 \
+#   && cd /tmp/asterisk \
+#   && ./configure --libdir=/usr/lib64 \
+#   && make menuselect \
+#   && menuselect/menuselect \
+#   --disable-category MENUSELECT_ADDONS \
+#   --disable-category MENUSELECT_APPS \
+#   --disable-category MENUSELECT_BRIDGES \
+#   --disable-category MENUSELECT_CDR \
+#   --disable-category MENUSELECT_CEL \
+#   --disable-category MENUSELECT_CHANNELS \
+#   --enable-category MENUSELECT_CODECS \
+#   --enable-category MENUSELECT_FORMATS \
+#   --disable-category MENUSELECT_FUNCS \
+#   --disable-category MENUSELECT_PBX \
+#   --disable-category MENUSELECT_RES \
+#   --disable-category MENUSELECT_TESTS \
+#   --disable-category MENUSELECT_OPTS_app_voicemail \
+#   --disable-category MENUSELECT_UTILS \
+#   --disable-category MENUSELECT_AGIS \
+#   --disable-category MENUSELECT_EMBED \
+#   --disable-category MENUSELECT_CORE_SOUNDS \
+#   --disable-category MENUSELECT_MOH \
+#   --disable-category MENUSELECT_EXTRA_SOUNDS \
+#   --enable app_controlplayback \
+#   --enable app_dial \
+#   --enable app_exec \
+#   --enable app_originate \
+#   --enable app_queue \
+#   --enable app_record \
+#   --enable app_senddtmf \
+#   --enable app_stasis \
+#   --enable app_verbose \
+#   --enable app_waituntil \
+#   --enable chan_sip \
+#   --enable pbx_config \
+#   --enable pbx_realtime \
+#   --enable res_agi \
+#   --enable res_ari \
+#   --enable res_ari_channels \
+#   --enable res_ari_events \
+#   --enable res_ari_playbacks \
+#   --enable res_ari_recordings \
+#   --enable res_ari_sounds \
+#   --enable res_ari_device_states \
+#   --enable res_realtime \
+#   --enable res_rtp_asterisk \
+#   --enable res_rtp_multicast \
+#   --enable res_stasis \
+#   --enable res_stasis_answer \
+#   --enable res_stasis_device_state \
+#   --enable res_stasis_playback \
+#   --enable res_stasis_recording \
+#   --enable res_stun_monitor \
+#   --enable res_timing_timerfd \
+#   --enable func_callcompletion \
+#   --enable func_callerid \
+#   --disable BUILD_NATIVE \
+#   menuselect.makeopts \
+#   && make config \
+#   && make \
+#   && make install \
+#   && mkdir -p /var/lib/asterisk/phoneprov \
+#   && make samples \
+#   && make dist-clean \
+#   && sed -i -e 's/# MAXFILES=/MAXFILES=/' /usr/sbin/safe_asterisk \
+#   && cd .. \
+#   && rm /tmp/asterisk.tar.gz \
+#   && rm -rf /tmp/asterisk \
+#   && yum -y clean all \
+#   && rm -rf /var/cache/yum/*
+#
+# CMD asterisk -fvvvvv
+
diff --git a/debian-buster-slim-16-current/build-asterisk.sh b/debian-buster-slim-16-current/build-asterisk.sh
new file mode 100755
index 0000000..6faea3c
--- /dev/null
+++ b/debian-buster-slim-16-current/build-asterisk.sh
@@ -0,0 +1,135 @@
+#!/bin/bash
+PROGNAME=$(basename $0)
+
+if test -z ${ASTERISK_VERSION}; then
+  echo "${PROGNAME}: ASTERISK_VERSION required" >&2
+  exit 1
+fi
+
+set -ex
+
+useradd --system asterisk
+
+apt-get update -qq
+DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends --no-install-suggests \
+    autoconf \
+    binutils-dev \
+    build-essential \
+    ca-certificates \
+    curl \
+    file \
+    libcurl4-openssl-dev \
+    libedit-dev \
+    libgsm1-dev \
+    libogg-dev \
+    libpopt-dev \
+    libresample1-dev \
+    libspandsp-dev \
+    libspeex-dev \
+    libspeexdsp-dev \
+    libsqlite3-dev \
+    libsrtp2-dev \
+    libssl-dev \
+    libvorbis-dev \
+    libxml2-dev \
+    libxslt1-dev \
+    procps \
+    portaudio19-dev \
+    unixodbc \
+    unixodbc-bin \
+    unixodbc-dev \
+    odbcinst \
+    uuid \
+    uuid-dev \
+    xmlstarlet
+
+apt-get purge -y --auto-remove
+rm -rf /var/lib/apt/lists/*
+
+mkdir -p /usr/src/asterisk
+cd /usr/src/asterisk
+
+curl -vsL http://downloads.asterisk.org/pub/telephony/asterisk/releases/asterisk-${ASTERISK_VERSION}.tar.gz | tar --strip-components 1 -xz || \
+curl -vsL http://downloads.asterisk.org/pub/telephony/asterisk/asterisk-${ASTERISK_VERSION}.tar.gz | tar --strip-components 1 -xz || \
+curl -vsL http://downloads.asterisk.org/pub/telephony/asterisk/old-releases/asterisk-${ASTERISK_VERSION}.tar.gz | tar --strip-components 1 -xz
+
+# 1.5 jobs per core works out okay
+: ${JOBS:=$(( $(nproc) + $(nproc) / 2 ))}
+
+./configure --with-resample \
+            --with-pjproject-bundled \
+            --with-jansson-bundled
+make menuselect/menuselect menuselect-tree menuselect.makeopts
+
+# disable BUILD_NATIVE to avoid platform issues
+menuselect/menuselect --disable BUILD_NATIVE menuselect.makeopts
+
+# enable good things
+menuselect/menuselect --enable BETTER_BACKTRACES menuselect.makeopts
+
+# enable ooh323
+menuselect/menuselect --enable chan_ooh323 menuselect.makeopts
+
+# codecs
+# menuselect/menuselect --enable codec_opus menuselect.makeopts
+# menuselect/menuselect --enable codec_silk menuselect.makeopts
+
+# # download more sounds
+# for i in CORE-SOUNDS-EN MOH-OPSOUND EXTRA-SOUNDS-EN; do
+#     for j in ULAW ALAW G722 GSM SLN16; do
+#         menuselect/menuselect --enable $i-$j menuselect.makeopts
+#     done
+# done
+
+# we don't need any sounds in docker, they will be mounted as volume
+menuselect/menuselect --disable-category MENUSELECT_CORE_SOUNDS menuselect.makeopts
+menuselect/menuselect --disable-category MENUSELECT_MOH menuselect.makeopts
+menuselect/menuselect --disable-category MENUSELECT_EXTRA_SOUNDS menuselect.makeopts
+
+make -j ${JOBS} all
+make install
+
+# copy default configs
+# cp /usr/src/asterisk/configs/basic-pbx/*.conf /etc/asterisk/
+make samples
+
+# set runuser and rungroup
+sed -i -E 's/^;(run)(user|group)/\1\2/' /etc/asterisk/asterisk.conf
+
+# Install opus, for some reason menuselect option above does not working
+mkdir -p /usr/src/codecs/opus \
+  && cd /usr/src/codecs/opus \
+  && curl -vsL http://downloads.digium.com/pub/telephony/codec_opus/${OPUS_CODEC}.tar.gz | tar --strip-components 1 -xz \
+  && cp *.so /usr/lib/asterisk/modules/ \
+  && cp codec_opus_config-en_US.xml /var/lib/asterisk/documentation/
+
+mkdir -p /etc/asterisk/ \
+         /var/spool/asterisk/fax
+
+chown -R asterisk:asterisk /etc/asterisk \
+                           /var/*/asterisk \
+                           /usr/*/asterisk
+chmod -R 750 /var/spool/asterisk
+
+cd /
+rm -rf /usr/src/asterisk \
+       /usr/src/codecs
+
+# remove *-dev packages
+devpackages=`dpkg -l|grep '\-dev'|awk '{print $2}'|xargs`
+DEBIAN_FRONTEND=noninteractive apt-get --yes purge \
+  autoconf \
+  build-essential \
+  bzip2 \
+  cpp \
+  m4 \
+  make \
+  patch \
+  perl \
+  perl-modules \
+  pkg-config \
+  xz-utils \
+  ${devpackages}
+rm -rf /var/lib/apt/lists/*
+
+exec rm -f /build-asterisk.sh
diff --git a/debian-buster-slim-16-current/docker-entrypoint.sh b/debian-buster-slim-16-current/docker-entrypoint.sh
new file mode 100755
index 0000000..a82f419
--- /dev/null
+++ b/debian-buster-slim-16-current/docker-entrypoint.sh
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+# run as user asterisk by default
+ASTERISK_USER=${ASTERISK_USER:-asterisk}
+
+if [ "$1" = "" ]; then
+  COMMAND="/usr/sbin/asterisk -T -W -U ${ASTERISK_USER} -p -vvvdddf"
+else
+  COMMAND="$@"
+fi
+
+if [ "${ASTERISK_UID}" != "" ] && [ "${ASTERISK_GID}" != "" ]; then
+  # recreate user and group for asterisk
+  # if they've sent as env variables (i.e. to macth with host user to fix permissions for mounted folders
+
+  deluser asterisk && \
+  adduser --gecos "" --no-create-home --uid ${ASTERISK_UID} --disabled-password ${ASTERISK_USER} || exit
+
+  chown -R ${ASTERISK_UID}:${ASTERISK_UID} /etc/asterisk \
+                                           /var/*/asterisk \
+                                           /usr/*/asterisk
+fi
+
+exec ${COMMAND}
diff --git a/edge b/edge
new file mode 120000
index 0000000..17dee1e
--- /dev/null
+++ b/edge
@@ -0,0 +1 @@
+alpine-edge
\ No newline at end of file
diff --git a/latest b/latest
new file mode 120000
index 0000000..deb9c14
--- /dev/null
+++ b/latest
@@ -0,0 +1 @@
+alpine-latest
\ No newline at end of file