144 lines
4.7 KiB
Bash
Executable File
144 lines
4.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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#===============================================================================
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# FILE: samba.sh
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#
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# USAGE: ./samba.sh
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#
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# DESCRIPTION: Entrypoint for samba docker container
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#
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# OPTIONS: ---
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# REQUIREMENTS: ---
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# BUGS: ---
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# NOTES: ---
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# AUTHOR: David Personette (dperson@gmail.com),
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# ORGANIZATION:
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# CREATED: 09/28/2014 12:11
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# REVISION: 1.0
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#===============================================================================
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set -o nounset # Treat unset variables as an error
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### import: import a smbpasswd file
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# Arguments:
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# file) file to import
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# Return: user(s) added to container
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import() { local name id file="${1}"
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while read name id; do
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useradd "$name" -M -u "$id"
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done < <(cut -d: -f1,2 --output-delimiter=' ' $file)
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pdbedit -i smbpasswd:$file
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}
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### share: Add share
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# Arguments:
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# share) share name
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# path) path to share
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# browsable) 'yes' or 'no'
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# readonly) 'yes' or 'no'
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# guest) 'yes' or 'no'
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# users) list of allowed users
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# admins) list of admin users
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# Return: result
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share() { local share="$1" path="$2" browsable=${3:-yes} ro=${4:-yes} \
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guest=${5:-yes} users=${6:-""} admins=${7:-""} \
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file=/etc/samba/smb.conf
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sed -i "/\\[$share\\]/,/^\$/d" $file
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echo "[$share]" >>$file
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echo " path = $path" >>$file
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echo " browsable = $browsable" >>$file
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echo " read only = $ro" >>$file
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echo " guest ok = $guest" >>$file
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[[ ${users:-""} && ! ${users:-""} =~ all ]] &&
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echo " valid users = $(tr ',' ' ' <<< $users)" >>$file
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[[ ${admins:-""} && ! ${admins:-""} =~ none ]] &&
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echo " admin users = $(tr ',' ' ' <<< $admins)" >>$file
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echo -e "" >>$file
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}
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### timezone: Set the timezone for the container
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# Arguments:
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# timezone) for example EST5EDT
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# Return: the correct zoneinfo file will be symlinked into place
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timezone() { local timezone="${1:-EST5EDT}"
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[[ -e /usr/share/zoneinfo/$timezone ]] || {
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echo "ERROR: invalid timezone specified: $timezone" >&2
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return
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}
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if [[ $(cat /etc/timezone) != $timezone ]]; then
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echo "$timezone" >/etc/timezone
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ln -sf /usr/share/zoneinfo/$timezone /etc/localtime
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dpkg-reconfigure -f noninteractive tzdata >/dev/null 2>&1
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fi
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}
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### user: add a user
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# Arguments:
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# name) for user
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# password) for user
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# Return: user added to container
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user() { local name="${1}" passwd="${2}"
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useradd "$name" -M
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echo "$passwd" | tee - | smbpasswd -s -a "$name"
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}
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### usage: Help
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# Arguments:
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# none)
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# Return: Help text
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usage() { local RC=${1:-0}
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echo "Usage: ${0##*/} [-opt] [command]
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Options (fields in '[]' are optional, '<>' are required):
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-h This help
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-i \"<path>\" Import smbpassword
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required arg: \"<path>\" - full file path in container
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-n Start the 'nmbd' daemon to advertise the shares
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-s \"<name;/path>[;browsable;readonly;guest;users]\" Configure a share
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required arg: \"<name>;<comment>;</path>\"
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<name> is how it's called for clients
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<path> path to share
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NOTE: for the default value, just leave blank
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[browsable] default:'yes' or 'no'
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[readonly] default:'yes' or 'no'
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[guest] allowed default:'yes' or 'no'
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[users] allowed default:'all' or list of allowed users
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[admins] allowed default:'none' or list of admin users
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-t \"\" Configure timezone
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possible arg: \"[timezone]\" - zoneinfo timezone for container
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-u \"<username;password>\" Add a user
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required arg: \"<username>;<passwd>\"
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<username> for user
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<password> for user
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The 'command' (if provided and valid) will be run instead of samba
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" >&2
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exit $RC
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}
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while getopts ":hi:nt:u:s:" opt; do
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case "$opt" in
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h) usage ;;
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i) import "$OPTARG" ;;
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n) NMBD="true" ;;
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s) eval share $(sed 's/^\|$/"/g; s/;/" "/g' <<< $OPTARG) ;;
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u) eval user $(sed 's/;/ /g' <<< $OPTARG) ;;
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t) timezone "$OPTARG" ;;
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"?") echo "Unknown option: -$OPTARG"; usage 1 ;;
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":") echo "No argument value for option: -$OPTARG"; usage 2 ;;
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esac
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done
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shift $(( OPTIND - 1 ))
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[[ "${TZ:-""}" ]] && timezone "$TZ"
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if [[ $# -ge 1 && -x $(which $1 2>&-) ]]; then
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exec "$@"
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elif [[ $# -ge 1 ]]; then
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echo "ERROR: command not found: $1"
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exit 13
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elif ps -ef | egrep -v grep | grep -q smbd; then
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echo "Service already running, please restart container to apply changes"
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else
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[[ $NMBD ]] && ionice -c 3 nmbd -DS
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exec ionice -c 3 smbd -FS
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fi |