summaryrefslogtreecommitdiff
path: root/share/hydractl/system-upgrade
blob: c94216a6b302ce99e3ca0e60ede7f75ebdcc3a74 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
#!/bin/bash
#
# Do a system upgrade, from a version to the next.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with this program.  If not, see
# <http://www.gnu.org/licenses/>.

# Load
source $APP_BASE/lib/hydra/functions || exit 1
hydra_config_load

# Parameters
TMP="/tmp"
STATE="$TMP/system-upgrade"
ENV="$TMP/system-upgrade-env"

# Command line arguments
BASENAME="`basename $0`"
NEXTRELEASE="$1"

# Proceed to the next upgrade stage
function hydra_system_upgrade_stage {
  STAGE="$1"
  echo $STAGE > $STATE
  hydra_system_upgrade_$STAGE
}

# Set and check upgrade environment
function hydra_system_upgrade_env {
  # Available releases
  #release="`facter lsbdistcodename`" # this doesn't work on squeeze
  release="`facter 2> /dev/null | grep lsbdistcodename | sed -e 's/lsbdistcodename => //'`"
  nextrelease="`hydra_next_debian_release $release`"

  # Is a virtual machine?
  virtual="`facter 2> /dev/null | grep virtual | grep -v '^is_virtual' | sed -e 's/virtual => //'`"

  # Save environment
  echo "release=$release"          > $ENV
  echo "nextrelease=$nextrelease" >> $ENV
  echo "nextrelease=$nextrelease" >> $ENV
  echo "virtual=$virtual"         >> $ENV

  # Check release
  if [ "$?" != "0" ]; then
    echo "Unsupported release"
    exit 1
  fi

  # Check optional parameter
  if [ ! -z "$NEXTRELEASE" ]; then
    if [ "$NEXTRELEASE" == "$release" ]; then
      echo "System is already upgraded to $NEXTRELEASE"
      exit 1
    fi

    if [ "$NEXTRELEASE" != "$nextrelease" ]; then
      echo "Cannot upgrade: next release for this system is $nextrelease"
      exit 1
    fi
  fi

  # Set next state
  hydra_system_upgrade_stage prepare
}

# Prepare the environment for a system upgrade
function hydra_system_upgrade_prepare {
  # Ensure puppet is stopped during the process
  echo "Disabling puppet during the upgrade..."
  hydractl puppet-disable

  # Configure apt for the next debian release
  echo ""
  echo "Updating apt configuration..."
  sed -i -e "s/$release/$nextrelease/g" /etc/apt/sources.list
  sed -i -e "s/$release/$nextrelease/g" /etc/apt/preferences
  sed -i -e 's|^deb http://backports.debian.org/debian-backports|#deb http://backports.debian.org/debian-backports|' /etc/apt/sources.list

  # These will be generated by puppet and can be safely removed
  rm -f /etc/apt/sources.list.d/*
  rm -f /etc/apt/preferences.d/*

  # These might lead in upgrade errors
  if [ "$virtual" == "vserver" ] && [ "$nextrelease" == "wheezy" ]; then
    apt-get remove makedev -y
    apt-get remove colord  -y
  fi

  # Set next state
  hydra_system_upgrade_stage download
}

# Update package listing and download new packages
function hydra_system_upgrade_download {
  echo ""
  echo "Updating package listing..."
  apt-get update
  echo ""
  echo "Downloading packages..."
  apt-get dist-upgrade -d -y
  hydra_system_upgrade_stage upgrade
}

# Proceed with the actual upgrade
function hydra_system_upgrade_upgrade {
  echo ""
  echo "Upgrading the system..."
  DEBIAN_FRONTEND=noninteractive apt-get dist-upgrade

  if [ "$?" != "0" ]; then
    echo "Upgrade failed. Please fix it manually and run this command again."
    exit 1
  fi

  hydra_system_upgrade_stage cleanup
}

# Cleanup procedures
function hydra_system_upgrade_cleanup {
  apt-get autoremove -y --purge
  apt-get clean
  hydra_system_upgrade_stage custom
}

# Custom upgrade procedures
function hydra_system_upgrade_custom {
  # Custom jessie stuff
  if [ "$nextrelease" == "jessie" ]; then
    # We're going masterless, so no puppet service
    apt-get remove puppet
  fi

  hydractl trac-upgrade
  #hydra_system_upgrade_stage puppet
}

# Enable puppet again
#function hydra_system_upgrade_puppet {
#  echo ""
#  echo "Starting puppet again..."
#  hydractl puppet-enable
#}

# Initialize
if [ ! -e "$STATE" ]; then
  hydra_system_upgrade_stage env
else
  # Resume from the previous state
  STAGE="`cat $STATE`"

  # Restore environment
  if [ -e "$ENV" ]; then
    source $ENV
  fi

  if [ ! -z "$STAGE" ]; then
    hydra_system_upgrade_stage $STAGE
  fi
fi

# Teardown
rm -f $STATE
rm -f $ENV