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samba.sh

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+#!/usr/bin/env bash
+#===============================================================================
+#          FILE: samba.sh
+#
+#         USAGE: ./samba.sh
+#
+#   DESCRIPTION: Entrypoint for samba docker container
+#
+#       OPTIONS: ---
+#  REQUIREMENTS: ---
+#          BUGS: ---
+#         NOTES: ---
+#        AUTHOR: David Personette (dperson@gmail.com),
+#  ORGANIZATION:
+#       CREATED: 09/28/2014 12:11
+#      REVISION: 1.0
+#===============================================================================
+
+set -o nounset                              # Treat unset variables as an error
+
+### share: Add share
+# Arguments:
+#   share) share name
+#   path) path to share
+#   browseable) 'yes' or 'no'
+#   readonly) 'yes' or 'no'
+#   guest) 'yes' or 'no'
+#   users) list of allowed users
+# Return: result
+share() { local share="$1" path="$2" browse=${3:-yes} ro=${4:-yes}\
+                guest=${5:-yes} users=${6:-""} file=/etc/samba/smb.conf
+    sed -i "/\\[$share\\]/,/^\$/d" $files
+    echo "[$share]" >> $file
+    echo "   path = $path" >> $file
+    echo "   browseable = $browse" >> $file
+    echo "   read only = $ro" >> $file
+    echo "   guest ok = $guest" >> $file
+    [[ ${users:-""} ]] &&
+        echo "   valid users = $(tr ',' ' ' <<< $users)" >> $file
+    echo -e "" >> $file
+}
+
+### timezone: Set the timezone for the container
+# Arguments:
+#   timezone) for example EST5EDT
+# Return: the correct zoneinfo file will be symlinked into place
+timezone() { local timezone="${1:-EST5EDT}"
+    [[ -e /usr/share/zoneinfo/$timezone ]] || {
+        echo "ERROR: invalid timezone specified" >&2
+        return
+    }
+
+    ln -sf /usr/share/zoneinfo/$timezone /etc/localtime
+}
+
+### user: add a user
+# Arguments:
+#   name) for user
+#   password) for user
+# Return: user added to container
+user() { local user="${1}" passwd="${2}"
+    useradd "$name" -M
+    echo "$passwd" | tee - | smbpasswd -s -a "$name"
+}
+### usage: Help
+# Arguments:
+#   none)
+# Return: Help text
+usage() { local RC=${1:-0}
+    echo "Usage: ${0##*/} [-opt] [command]
+Options (fields in '[]' are optional, '<>' are required):
+    -h          This help
+    -s \"<name;/path>[;browse;readonly;guest;users]\" Configure a share
+                required arg: \"<name>;<comment>;</path>\"
+                <name> is how it's called for clients
+                <path> path to share
+                [browseable] default:'yes' or 'no'
+                [readonly] default:'yes' or 'no'
+                [guest] allowed default:'yes' or 'no'
+                [users] allowed default:'all' or list of allowed users
+    -t \"\"       Configure timezone
+                possible arg: \"[timezone]\" - zoneinfo timezone for container
+    -u \"<username;password>\"       Add a user
+                required arg: \"<username>;<passwd>\"
+                <username> for user
+                <password> for user
+
+The 'command' (if provided and valid) will be run instead of samba
+" >&2
+    exit $RC
+}
+
+while getopts ":ht:" opt; do
+    case "$opt" in
+        h) usage ;;
+        s) eval share $(sed 's/^\|$/"/g; s/;/" "/g' <<< $OPTARG) ;;
+        t) timezone "$OPTARG" ;;
+        "?") echo "Unknown option: -$OPTARG"; usage 1 ;;
+        ":") echo "No argument value for option: -$OPTARG"; usage 2 ;;
+    esac
+done
+shift $(( OPTIND - 1 ))
+
+[[ "${TIMEZONE:-""}" ]] && timezone "$TIMEZONE"
+
+if [[ $# -ge 1 && -x $(which $1 2>&-) ]]; then
+    exec "$@"
+elif [[ $# -ge 1 ]]; then
+    echo "ERROR: command not found: $1"
+    exit 13
+else
+    exec ionice -c 3 smbd -FS
+fi