[feisty_meow.git] / scripts / site_avenger / revamp_cakelampvm.sh

#!/bin/bash

# fixes the cakelampvm permissions according to the way.

##############

if [[ $EUID != 0 ]]; then
  echo "This script must be run as root or sudo."
  exit 1
fi

##############

export WORKDIR="$( \cd "$(\dirname "$0")" && \pwd )"  # obtain the script's working directory.
export FEISTY_MEOW_APEX="$( \cd "$WORKDIR/../.." && \pwd )"

export NO_HELLO=right
source "$FEISTY_MEOW_APEX/scripts/core/launch_feisty_meow.sh"
# load dependencies for our script.
source "$FEISTY_MEOW_SCRIPTS/system/common_sysadmin.sh"
source "$FEISTY_MEOW_SCRIPTS/security/password_functions.sh"

##############

# new requirement to have the sql root password, since we need to do some sql db configuration.

mysql_passwd="$(load_password /etc/mysql/secret_password)"
if [ -z "$mysql_password" ]; then
  mysql_password="$(read_password "Please enter the MySQL root account password:")"
#  echo -n "Please enter the MySQL root account password: "
#  # turn off echo but remember former setting.
#  stty_orig=`stty -g`
#  stty -echo
#  read mysql_passwd
#  # turn echo back on.
#  stty $stty_orig
fi
if [ -z "$mysql_passwd" ]; then
  echo "This script must have the sql root password to proceed."
  exit 1
else
  store_password /etc/mysql/secret_password "$mysql_password"
fi

##############

sep

echo "Regenerating feisty meow loading dock."

regenerate
test_or_die "regenerating feisty meow configuration"
chown -R "$(logname)":"$(logname)" /home/$(logname)/.[a-zA-Z0-9]*
test_or_die "fix after reconfigured as sudo"

##############

# set up some crucial users in the mysql db that we seem to have missed previously.

sep

echo "Adding users to the mysql database."

#hmmm: good application for hiding output unless error here.
mysql -u root -p"$mysql_passwd" &>/dev/null <<EOF
  create user if not exists 'root'@'%' IDENTIFIED BY '$mysql_passwd';
  grant all privileges on *.* TO 'root'@'%' with grant option;

  create user if not exists 'wampcake'@'%' IDENTIFIED BY 'bakecamp';
  grant all privileges on *.* TO 'wampcake'@'%' with grant option;

  create user if not exists 'lampcake'@'%' IDENTIFIED BY 'bakecamp';
  grant all privileges on *.* TO 'lampcake'@'%' with grant option;
EOF
test_or_die "configuring root, wampcake and lampcake users on mysql"

##############

sep

echo "Making some important permission changes..."

# fix up the main web storage.
chown -R www-data:www-data /var/www 
test_or_die "chown www-data"
group_perm /var/www 
test_or_die "group_perm www-data"

##############

# set up access on some important folders for the developer user.
chown -R developer:developer /home/developer /home/developer/.[a-zA-Z0-9]*
test_or_die "chown developer home"
harsh_perm /home/developer/.ssh
test_or_die "harsh_perm setting on developer .ssh"
chown -R developer:developer /etc/apache2 /etc/bind 
test_or_die "chown apache2 and bind to developer"
group_perm /etc/apache2 /etc/bind 
test_or_die "group perms on apache2 and bind"

##############

# fix perms for fred user.
chown -R fred:fred /home/fred /home/archives/stuffing /home/fred/.[a-zA-Z0-9]*
test_or_die "chown fred home"
group_perm $HOME/apps
test_or_die "group perms on fred's apps"
harsh_perm /home/fred/.ssh
test_or_die "harsh_perm setting on fred .ssh"
chown -R fred:fred /opt/feistymeow.org 
test_or_die "chown feisty meow to fred"
group_perm /opt/feistymeow.org 
test_or_die "group perms on feisty meow"
group_perm /home/fred/apps/mapsdemo
test_or_die "group perms on mapsdemo app"

echo "Done with important permission changes."

##############
#
# some slightly tricky bits start here.  we want to massage the vm into the
# best possible shape without needing to re-release it.
#
##############

sep

echo "Updating developer welcome file."

# only update hello if they've still got the file there.  we don't want to
# keep forcing our hellos at people.
if [ -f "$HOME/hello.txt" ]; then
  # copy the most recent hello file into place for the user.
  \cp -f "$FEISTY_MEOW_APEX/production/sites/cakelampvm.com/hello.txt" "$HOME"
  test_or_continue "copying hello file for user"
fi

##############

# install a better editor app.

sep

echo "The script is about to install the bluefish editor and some dependencies.
If the app is not already installed, then this process takes about one minute
on a slow home DSL internet connection..."

apt-get install -y bluefish &> "/tmp/install_bluefish-$(logname).log"
test_or_continue "installing bluefish editor"

##############

# deploy any site updates here to the VM's cakelampvm.com site.
#
# we want to upgrade the default apache site to the latest, since the new
# version mirrors the one on the internet (but with green checks instead
# of red X's) and since we also support https on the new default version.
# we can do this again later if needed, by upping the numbers on the apache
# site config files.  our original site was 000 and the new version is 001,
# which we've done as a prefix on the config for some reason.  makes the
# code below easy at least.
if [ -L /etc/apache2/sites-enabled/000-default.conf ]; then

  sep

  # the old site is in place still, so let's update that.
  echo "Updating default web sites to latest version."

  a2enmod ssl
  test_or_die "enabling SSL for secure websites"

  restart_apache
  test_or_die "getting SSL loaded in apache"

  a2dissite 000-default
  test_or_die "disabling old apache site"

  rm -f /etc/apache2/sites-available/000-default.conf 
  test_or_die "removing old apache site"

  # copy in our new version of the default page.
#hmmm: would be nice if this worked without mods for any new version, besides just 001.  see apache env var file below for example implem.
  \cp -f $FEISTY_MEOW_APEX/production/sites/cakelampvm.com/rolling/default_page.001/* \
      /etc/apache2/sites-available
  test_or_die "installing new apache default sites"

  # there should only be ours at this version level and with that prefix.
  a2ensite 001-*
  test_or_die "enabling new apache default sites"

  restart_apache
fi

##############

# fix up the apache site so that HSTS is disabled.  otherwise we can't view
# the https site for cakelampvm.com once the domain name switch has occurred.

sep

# we operate only on our own specialized tls conf file.  hopefully no one has messed with it besides revamp.
# note the use of the character class :blank: below to match spaces or tabs.
search_replace "^[[:blank:]]*Header always set Strict-Transport-Security.*" "# not good for cakelampvm.com -- Header always set Strict-Transport-Security \"max-age=63072000; includeSubdomains;\"" /etc/apache2/conf-library/tls-enabling.conf
if [ $? -ne 0 ]; then
  echo the apache tls-enabling.conf file seems to have already been patched to disable strict transport security. 
else
  restart_apache
  echo successfully patched the apache tls-enabling.conf file to disable strict transport security. 
fi

##############

# fix up bind so that we think of any address with cakelampvm.com on the end
# as being on the vm.  this is already true for some specific sites, but we
# want the wildcard enabled to ease the use of DNS for windows folks.

sep

grep -q "\*[[:blank:]]*IN A[[:blank:]]*10.28.42.20" /etc/bind/cakelampvm.com.conf
if [ $? -eq 0 ]; then
  # already present.
  echo the bind settings for wildcard domains off of cakelampvm.com seems to already be present. 
else
  echo "


;;;;;;

; our bind magic, a wildcard domain, for all other sites with cakelampvm.com
; in the domain.  this forces any other sites besides the ones above to route
; to the actual vm IP address, which currently is singular and very fixated.
*                               IN A            10.28.42.20
                                IN HINFO        \"linux vm\" \"ubuntu\"

;;;;;;



" >> /etc/bind/cakelampvm.com.conf
  restart_bind
  echo "successfully added wildcard domains to the cakelampvm.com bind configuration."
fi

##############

# fix samba configuration for (ass-headed) default of read-only in user homes.
# why cripple a necessary feature by default?

sep

pattern="[#;][[:blank:]]*read only = yes"
replacement="read only = no"

# we just always do the replacement now, after realizing the sentinel pattern
# was acutally already in the file...  too much subtlety can get one into trouble.
sed -i "0,/$pattern/{s/$pattern/$replacement/}" /etc/samba/smb.conf
test_or_die "patching samba configuration to enable write acccess on user home dirs"
# sweet, looks like that worked...
restart_samba
echo successfully patched the samba configuration to enable writes on user home directories. 

##############

# add the latest version of the cakelampvm environment variables for apache.

sep

# drop existing file, if already configured.  ignore errors.
a2disconf env_vars_cakelampvm &>/dev/null

# plug in the new version, just stomping anything there.
# note: we only expect to have one version of the env_vars dir at a time in place in feisty...
\cp -f $FEISTY_MEOW_APEX/production/sites/cakelampvm.com/rolling/env_vars.*/env_vars_cakelampvm.conf /etc/apache2/conf-available
test_or_die "copying environment variables file into place"

# enable the new version of the config file.
a2enconf env_vars_cakelampvm
test_or_die "enabling the new cakelampvm environment config for apache"

echo Successfully configured the apache2 environment variables needed for cakelampvm.

##############

# add in a swap mount if not already configured.

sep

echo "Checking existing swap partition configuration.
"

# check for existing swap.
free | grep -q "Swap:[[:blank:]]*[1-9][0-9]"
if [ $? -ne 0 ]; then
  # no swap in current session, so add it.
  echo "Enabling ramdisk swap partition...
"
  add_swap_mount
  echo "
Enabled ramdisk swap partition for current boot session."
fi

# the above just gives this session a swap partition, but we want to have
# the vm boot with one also.

# check if there is already swap mentioned in the root crontab.  we will get root's
# crontab below since this script has to run as sudo.
crontab -l | grep -iq add_swap_mount
if [ $? -ne 0 ]; then
  # no existing swap setup in crontab, so add it.
  echo "
Adding a boot-time ramdisk swap partition...
"
  # need to do it carefully, since sed won't add lines to a null file.  we thus
  # create a temporary file to do our work in and ignore sed as a tool for this.
  tmpfile="$(mktemp junk.XXXXXX)"
  crontab -l 2>/dev/null >"$tmpfile"
  echo "
# need to explicitly set any variables we will use.
FEISTY_MEOW_APEX=${FEISTY_MEOW_APEX}
# add swap space to increase memory available.
@reboot bash $FEISTY_MEOW_APEX/scripts/system/add_swap_mount.sh
" >>"$tmpfile"
  # now install our new version of the crontab.
  crontab "$tmpfile"
  rm "$tmpfile"

  echo "
Added boot-time ramdisk swap partition to crontab for root."
fi

##############

sep

# next bit can go here.

##############
##############

# sequel--tell them they're great and show the hello again also.

sep

regenerate
test_or_die "regenerating feisty meow scripts"
chown -R "$(logname)":"$(logname)" /home/$(logname)/.[a-zA-Z0-9]*
test_or_die "fix after regenerate as sudo"
echo "


Thanks for revamping your cakelampvm.  :-)

You may want to update your current shell's feisty meow environment by typing:
  regenerate
"

##############