system/conmon: Added (Monitoring and Communication Tool).

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

system/conmon/README

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+An OCI container runtime monitor.
+
+Conmon is a monitoring program and communication tool between a container
+manager (like podman or CRI-O) and an OCI runtime (like runc or crun) for a
+single container.
+
+Upon being launched, it double-forks to daemonize and detach from the parent
+that launched it. It then launches the runtime as its child. This allows
+managing processes to die in the foreground, but still be able to watch over
+and connect to the child process (the container).
+
+While the container runs, conmon does two things:
+
+    Provides a socket for attaching to the container, holding open the
+    container's standard streams and forwarding them over the socket.  Writes
+    the contents of the container's streams to a log file (or to the systemd
+    journal) so they can be read after the container's death.
+
+Finally, upon the containers death, conmon will record its exit time and code
+to be read by the managing programs.
+
+Written in C and designed to have a low memory footprint, conmon is intended
+to be run by a container managing library. Essentially, conmon is the smallest
+daemon a container can have.

system/conmon/conmon.SlackBuild

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+#!/bin/sh
+
+# Slackware build script for conmon
+
+# Copyright 2019 Gabriel Diaz, Madrid, Spain
+# Copyright 2019 Vincent Batts, Raleigh, NC, USA
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+PRGNAM=conmon
+REPONAME=conmon
+VERSION=${VERSION:-2.0.1}
+GIT_COMMIT="4dc8bcfec41e10ca760c8e2089474c2843dfd066"
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+# The domain part of the go package name, usually the hosting platform
+DOMAIN=github.com
+# The name of the organization/owner of the package
+ORG=containers
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  LIBDIRSUFFIX="64"
+else
+  LIBDIRSUFFIX=""
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $REPONAME-$VERSION
+mkdir -p $REPONAME-$VERSION/src/$DOMAIN/$ORG
+cd $REPONAME-$VERSION/src/$DOMAIN/$ORG
+tar xvf $CWD/$REPONAME-$VERSION.tar.gz
+mv $REPONAME-$VERSION $REPONAME
+cd $REPONAME
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+# Point go to the location of the source tree
+export GOPATH="$TMP/$REPONAME-$VERSION"
+
+make podman DESTDIR="$PKG" PREFIX="/usr/" MANDIR="/usr/man/"
+
+
+find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
+  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a \
+  LICENSE README.md \
+  $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}

system/conmon/conmon.info

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+PRGNAM="conmon"
+VERSION="2.0.1"
+HOMEPAGE="https://github.com/containers/conmon"
+DOWNLOAD="https://github.com/containers/conmon/archive/v2.0.1/conmon-2.0.1.tar.gz"
+MD5SUM="72eea27a2ac98ec35611dd91ee786c70"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="Vincent Batts"
+EMAIL="vbatts@hashbangbash.com"

system/conmon/slack-desc

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+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+      |-----handy-ruler------------------------------------------------------|
+conmon: conmon (utility to run OCI-based containers)
+conmon:
+conmon: Conmon is a monitoring program and communication tool between a
+conmon: container  manager (like podman or CRI-O) and an OCI runtime (like
+conmon: runc or crun) for a single container.
+conmon:
+conmon: Site: https://github.com/containers/conmon
+conmon:
+conmon:
+conmon: