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Rebuild docker-entrypoint scripts

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This commit is contained in:
cytopia
2018-02-27 09:32:49 +01:00
parent 7d41e38374
commit f5491d91fc
27 changed files with 530 additions and 610 deletions
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159
Dockerfiles/prod/data/docker-entrypoint.d/33-socat-port-forwarding.sh
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@@ -1,93 +1,76 @@
#!/bin/sh
#
# Available global variables:
# + MY_USER
# + MY_GROUP
# + DEBUG_LEVEL
#!/usr/bin/env bash
set -e
set -u
set -o pipefail
############################################################
# Helper Functions
############################################################
###
### Helper functions
###
# Check whether a string is a valid IP address
_isip() {
local o1=
local o2=
local o3=
local o4=
# IP is not in correct format
if ! echo "${1}" | grep -Eq '^([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})$'; then
return 1
fi
# Get each octet
isip_o1="$( echo "${1}" | awk -F'.' '{print $1}' )"
isip_o2="$( echo "${1}" | awk -F'.' '{print $2}' )"
isip_o3="$( echo "${1}" | awk -F'.' '{print $3}' )"
isip_o4="$( echo "${1}" | awk -F'.' '{print $4}' )"
o1="$( echo "${1}" | awk -F'.' '{print $1}' )"
o2="$( echo "${1}" | awk -F'.' '{print $2}' )"
o3="$( echo "${1}" | awk -F'.' '{print $3}' )"
o4="$( echo "${1}" | awk -F'.' '{print $4}' )"
# Cannot start with 0 and all must be below 256
if [ "${isip_o1}" -lt "1" ] || \
[ "${isip_o1}" -gt "255" ] || \
[ "${isip_o2}" -gt "255" ] || \
[ "${isip_o3}" -gt "255" ] || \
[ "${isip_o4}" -gt "255" ]; then
unset -v isip_o1
unset -v isip_o2
unset -v isip_o3
unset -v isip_o4
if [ "${o1}" -lt "1" ] || \
[ "${o1}" -gt "255" ] || \
[ "${o2}" -gt "255" ] || \
[ "${o3}" -gt "255" ] || \
[ "${o4}" -gt "255" ]; then
# Error
return 1
fi
unset -v isip_o1
unset -v isip_o2
unset -v isip_o3
unset -v isip_o4
# Success
return 0
}
# Check whether a string is a valid hostname
_ishostname() {
local hostname="${1}"
local first_char=
local last_char=
# Does not have correct character class
if ! echo "${1}" | grep -Eq '^[-.0-9a-zA-Z]+$'; then
if ! echo "${hostname}" | grep -Eq '^[-.0-9a-zA-Z]+$'; then
return 1
fi
# first and last character
ishostname_f_char="$( echo "${1}" | cut -c1-1 )"
ishostname_l_char="$( echo "${1}" | sed -e 's/.*\(.\)$/\1/' )"
first_char="${hostname:0:1}"
last_char="${hostname: -1}"
# Dot at beginning or end
if [ "${ishostname_f_char}" = "." ] || [ "${ishostname_l_char}" = "." ]; then
unset -v ishostname_f_char
unset -v ishostname_l_char
if [ "${first_char}" = "." ] || [ "${last_char}" = "." ]; then
# Error
return 1
fi
# Dash at beginning or end
if [ "${ishostname_f_char}" = "-" ] || [ "${ishostname_l_char}" = "-" ]; then
unset -v ishostname_f_char
unset -v ishostname_l_char
if [ "${first_char}" = "-" ] || [ "${last_char}" = "-" ]; then
# Error
return 1
fi
unset -v ishostname_f_char
unset -v ishostname_l_char
# Multiple dots next to each other
if echo "${1}" | grep -Eq '[.]{2,}'; then
if echo "${hostname}" | grep -Eq '[.]{2,}'; then
# Error
return 1
fi
# Dash next to dot
if echo "${1}" | grep -Eq '(\.-)|(-\.)'; then
if echo "${hostname}" | grep -Eq '(\.-)|(-\.)'; then
# Error
return 1
fi
@@ -97,32 +80,30 @@ _ishostname() {
}
############################################################
# Functions
############################################################
###
###
### Convert comma separated port-forwards into newline separated "lport:host:rport"
###
port_forward_get_lines() {
local forwards=
local l=
if env_set "${1}"; then
# Transform into newline separated forwards:
# local-port:host:remote-port\n
# local-port:host:remote-port\n
pfl_forwards="$( env_get "${1}" | sed 's/[[:space:]]*//g' | sed 's/,/\n/g' )"
forwards="$( env_get "${1}" | sed 's/[[:space:]]*//g' | sed 's/,/\n/g' )"
# loop over them line by line
IFS='
'
for pfl_line in ${pfl_forwards}; do
echo "${pfl_line}"
for l in ${forwards}; do
echo "${l}"
done
unset -v pfl_forwards
unset -v pfl_line
fi
}
@@ -142,47 +123,53 @@ port_forward_get_rport() {
port_forward_validate() {
pfv_env_varname="${1}"
local env_varname="${1}"
local debug="${2}"
local line=
if ! env_set "${pfv_env_varname}"; then
log "info" "\$${pfv_env_varname} not set."
log "info" "Not ports from other machines will be forwarded to 127.0.0.1 inside this docker"
local lport=
local rhost=
local rport=
if ! env_set "${env_varname}"; then
log "info" "\$${env_varname} not set." "${debug}"
log "info" "Not ports from other machines will be forwarded to 127.0.0.1 inside this docker" "${debug}"
else
# Loop over forwards in order to validate them
for pfv_line in $( port_forward_get_lines "${pfv_env_varname}" ); do
pfv_lport="$( port_forward_get_lport "${pfv_line}" )"
pfv_rhost="$( port_forward_get_rhost "${pfv_line}" )"
pfv_rport="$( port_forward_get_rport "${pfv_line}" )"
for line in $( port_forward_get_lines "${env_varname}" ); do
lport="$( port_forward_get_lport "${line}" )"
rhost="$( port_forward_get_rhost "${line}" )"
rport="$( port_forward_get_rport "${line}" )"
if ! isint "${pfv_lport}"; then
log "err" "Port forwarding error: local port is not an integer: ${pfv_lport}"
log "err" "Line: ${pfv_line}"
# Wrong number of ':' separators
if [ "$( echo "${line}" | grep -o ':' | wc -l )" -ne "2" ]; then
log "err" "Port forwarding error: invalid number of ':' separators" "${debug}"
log "err" "Line: ${line}" "${debug}"
exit
fi
if ! isint "${lport}"; then
log "err" "Port forwarding error: local port is not an integer: ${lport}" "${debug}"
log "err" "Line: ${line}" "${debug}"
exit 1
fi
if ! _isip "${pfv_rhost}" && ! _ishostname "${pfv_rhost}"; then
log "err" "Port forwarding error: remote host is not a valid IP and not a valid hostname: ${pfv_rhost}"
log "err" "Line: ${pfv_line}"
log "err" ""
if ! _isip "${rhost}" && ! _ishostname "${rhost}"; then
log "err" "Port forwarding error: remote host is not a valid IP and not a valid hostname: ${rhost}" "${debug}"
log "err" "Line: ${line}" "${debug}"
log "err" "" "${debug}"
exit 1
fi
if ! isint "${pfv_rport}"; then
log "err" "Port forwarding error: remote port is not an integer: ${pfv_rport}"
log "err" "Line: ${pfv_line}"
log "err" ""
if ! isint "${rport}"; then
log "err" "Port forwarding error: remote port is not an integer: ${rport}" "${debug}"
log "err" "Line: ${line}" "${debug}"
log "err" "" "${debug}"
exit 1
fi
log "info" "Forwarding ${pfv_rhost}:${pfv_rport} to 127.0.0.1:${pfv_lport} inside this docker."
log "info" "Forwarding ${rhost}:${rport} to 127.0.0.1:${lport} inside this docker." "${debug}"
done
unset -v pfv_line
unset -v pfv_lport
unset -v pfv_rhost
unset -v pfv_rport
fi
unset -v pfv_env_varname
}
@@ -190,15 +177,15 @@ port_forward_validate() {
# Sanity Checks
############################################################
if ! command -v awk >/dev/null 2>&1; then
echo "awk not found, but required."
if ! command -v socat >/dev/null 2>&1; then
log "err" "socat not found, but required." "1"
exit 1
fi
if ! command -v cut >/dev/null 2>&1; then
echo "cut not found, but required."
if ! command -v awk >/dev/null 2>&1; then
log "awk not found, but required." "1"
exit 1
fi
if ! command -v sed >/dev/null 2>&1; then
echo "sed not found, but required."
log "sed not found, but required." "1"
exit 1
fi