Init

Author: chbrandt

config_user.sh

@@ -0,0 +1,30 @@
+#!/bin/bash -e
+#================================================#
+# Script to config a User for docker container.  #
+# It is meant to run during container's init     #
+#  process. Such process is necessary to better  #
+#  exchange files/bus between host/container.    #
+# Variables DUSER, DUID, DGID are read from the  #
+#  environment; if NOUSER is set, do nothing.    #
+#================================================#
+
+DEFAULT_USER="user"
+DEFAULT_UID="1000"
+DEFAULT_GID="100"
+
+[[ ! -z "$NOUSER" ]] && \
+    # nothing to be done here
+    exit 0
+
+DUSER="${DUSER-$DEFAULT_USER}"
+DUID="${DUID-$DEFAULT_UID}"
+DGID="${DGID-$DEFAULT_GID}"
+
+useradd -u "$DUID" \
+        -g "$DGID" \
+        -d "/home/$DUSER" -m \
+        -s /bin/bash \
+        "$DUSER"
+
+echo $DUSER
+

entrypoint.sh

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+#!/bin/bash -e
+#==============================================#
+# Script to support the initialization process #
+#  in a docker container.                      #
+#==============================================#
+
+# Executable to which cl arguments should fit
+INTERP="${ENTRYPOINT-'echo'}"
+
+# Save the input cl arguments
+DARGS="$*"
+
+# Save the current path
+CWD="$PWD"
+
+# Add a user here
+USERNAME=$(${CWD}/config_user.sh)
+
+[[ "$USERNAME" = "0" ]] && USERNAME="$USER"
+
+su -l $USERNAME -c "$INTERP $DARGS"
+