diff --git a/Dockerfile b/Dockerfile
index bc87e87..b1c5b7d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,7 +5,9 @@ VOLUME /data
 
 RUN apk add --no-cache git bash
 
-
-CMD [ "/bin/bash" ]
+ADD checker/* src/* /usr/local/bin/
+
+
+CMD [ "/usr/local/bin/run-checker" ]
 
 
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..6bdb89e
--- /dev/null
+++ b/README.md
@@ -0,0 +1,13 @@
+# Docker Repo Checker 
+
+Container, that runs mirror process of git repository periodically
+
+# Run command:
+
+Tiniest case is:
+
+```bash
+docker run -v cloner-test:/data -it --rm docker-cloner
+```
+
+when you HAVE to specify volume with configuration etc
diff --git a/checker/cloner-lib-auth b/checker/cloner-lib-auth
new file mode 100644
index 0000000..86280fd
--- /dev/null
+++ b/checker/cloner-lib-auth
@@ -0,0 +1,18 @@
+#!/bin/bash
+# library made for sourcing - just to prepare git auth environment
+
+function prepareGitAuth(){
+	# usage
+	# $1 - config directory
+	confdir=$1/auth
+	[ -d $confdir ] || mkdir $confdir
+	[ -d $confdir/ssh ] || mkdir $confdir/ssh
+
+	chmod 0600 $confdir 
+
+	# git configure http authenticator
+	git config --global credential.helper "store --file=$confdir/git-credentials"
+	# git configure ssh auth
+	git config --global core.sshcommand "ssh -i $confdir/ssh/id_rsa -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o BatchMode=yes"
+}
+
diff --git a/checker/cloner-lib-cfg b/checker/cloner-lib-cfg
new file mode 100644
index 0000000..ad6e3f3
--- /dev/null
+++ b/checker/cloner-lib-cfg
@@ -0,0 +1,12 @@
+#!/bin/bash
+# library for work with config file
+
+# check directories if they exist
+[ -d $CONFIG_DIR ] || die "Config directory does not exist on volune - $CONFIG_DIR"
+[ -f $CONFIG_DIR/cloner.cfg ] || die "Config file does not exist - create please cloner.cfg" 
+# load config files
+source $CONFIG_DIR/cloner.cfg
+
+# check if the url is specified 
+repo=${cloner_repo_url:-}
+[ -z "$repo" ] && die "No repository url is specified" || true
diff --git a/checker/cloner-lib-general b/checker/cloner-lib-general
new file mode 100644
index 0000000..9bcf2f1
--- /dev/null
+++ b/checker/cloner-lib-general
@@ -0,0 +1,12 @@
+#!/bin/bash
+# configure
+export BASE=/data
+export CCLONE_PATH=$BASE/repos
+export CCLONE_CACHE=$BASE/cache
+export CONFIG_DIR=$BASE/config
+
+function die(){
+	echo "$@" 1>&2
+	exit 1
+}
+
diff --git a/checker/run-checker b/checker/run-checker
new file mode 100755
index 0000000..80f44ac
--- /dev/null
+++ b/checker/run-checker
@@ -0,0 +1,49 @@
+#!/bin/bash
+set -euo pipefail
+IFS=$'\n\t'
+
+# source libs
+mydir=$(dirname $(realpath $0))
+source $mydir/cloner-lib-general
+source $mydir/cloner-lib-auth
+source $mydir/cloner-lib-cfg
+
+
+# interval - in minutes
+interval=${cloner_interval:-0}
+stampfile=$CCLONE_CACHE/last-check-time
+
+# does it exist - if not, sync
+[ -d $CCLONE_CACHE ] || mkdir $CCLONE_CACHE
+[ -f $stampfile ] || echo 0 > $stampfile
+
+
+now=$(date +"%s")
+last=$(cat $stampfile)
+diff=$(($now - $last))
+mindiff=$(($interval * 60))
+unset now last
+
+if [ $diff -lt $mindiff ]
+then
+	echo "Limit not reached - not syncing now"
+	exit 0
+fi
+
+# check and clone repo
+submodules=${cloner_submodules:-0}
+depth=${cloner_submodule_depth:-}
+
+prepareGitAuth $CONFIG_DIR
+
+# without submodule support
+if [ ! "x$submodules" = "x1" ] 
+then
+	mirror-main-repo $repo 
+else
+	mirror-recursive $repo $depth
+fi
+
+date +"%s" > $stampfile
+
+
diff --git a/run.sh b/run.sh
index 83792ca..2f7b98b 100755
--- a/run.sh
+++ b/run.sh
@@ -1,3 +1,4 @@
 #!/bin/bash
 docker build -t docker-cloner .
 docker run -v cloner-test:/data -it --rm docker-cloner
+