1+ #! /bin/bash
2+
3+ # we have to check since we cannot continue unless
4+ if [ -f /etc/redhat-release ]; then
5+ CENTOS_MAJOR=" $( cat /etc/redhat-release | awk -F' [^0-9]+' ' { print $2 }' ) "
6+
7+ if [[ " $CENTOS_MAJOR " != " 8" && " $CENTOS_MAJOR " != " 9" ; then
8+ echo " Unsupported OS version, only support CentOS/RHEL 8 and 9."
9+ exit 1
10+ fi
11+ fi
12+
13+ if [ -f /etc/lsb-release ]; then
14+ UBUNTU_YEAR=" $( lsb_release -sr | cut -d ' .' ) " ;
15+ UBUNTU_RELEASE=" $( lsb_release -cs) "
16+
17+ if [[ " $UBUNTU_YEAR " != " 20" && " $UBUNTU_YEAR " != " 22" && " $UBUNTU_YEAR " != " 24" ; then
18+ echo " Unsupported OS version, only support Ubuntu 20 and 22 and 24."
19+ exit 1
20+ fi
21+ fi
22+
23+ # check if authentication is required
24+ isAuth=0
25+ if grep -Eq ' ^\s*authorization\s*:\s*enabled' ; then
26+ isAuth=1
27+ fi
28+
29+ # check if we have previous upgrade needed
30+ FEATVER=$( mongosh admin --eval " printjson(db.adminCommand( { getParameter: 1, featureCompatibilityVersion: 1 } ).featureCompatibilityVersion)" ) ;
31+ VER=$( mongod -version | grep " db version" | cut -d ' ' | cut -d ' v' )
32+
33+ if [ " $isAuth " -eq " 1" ; then
34+ echo " Since authentication is enabled, we cannot verify if you need to run this upgrade script"
35+ echo " "
36+ echo " Please run this command with authentication parameters:"
37+ echo " "
38+ echo " mongosh admin --eval \" db.adminCommand({ getParameter: 1, featureCompatibilityVersion: 1 } )\" "
39+ echo " "
40+ echo " and continue only if \" featureCompatibilityVersion\" is 7.0 "
41+ echo " "
42+ read -r -p " Is your \" featureCompatibilityVersion\" version is 7.0? [y/N] "
43+ if [[ " $response " =~ ^([yY][eE][sS]| [yY])$ ]]
44+ then
45+ echo " Continue upgrading"
46+ else
47+ echo " Stopping script"
48+ exit 0;
49+ fi
50+
51+ fi
52+
53+ if [ -x " $( command -v mongosh) " ; then
54+ if echo " $VER " | grep -q -i " 8.0" ; then
55+ if echo " $FEATVER " | grep -q -i " 7.0" ; then
56+ echo " run this command to upgrade to 8.0" ;
57+ echo " mongosh admin --eval \" db.adminCommand( { setFeatureCompatibilityVersion: \\\" 8.0\\\" , confirm: true } )\" " ;
58+ else
59+ echo " We already have version 8.0" ;
60+ fi
61+ exit 0;
62+ elif echo " $VER " | grep -q -i " 7.0" ; then
63+ if echo " $FEATVER " | grep -q -i " 6.0" ; then
64+ echo " run this command before upgrading to 8.0 and rerunning this script" ;
65+ echo " mongosh admin --eval \" db.adminCommand( { setFeatureCompatibilityVersion: \\\" 7.0\\\" , confirm: true } )\" " ;
66+ exit 0;
67+ else
68+ echo " Upgrading to MongoDB 8.0" ;
69+ fi
70+ else
71+ echo " Unsupported MongodB version $VER " ;
72+ echo " Upgrade to MongoDB 7.0 first and then run this script" ;
73+ exit 1;
74+ fi
75+
76+ if [ -f /etc/redhat-release ]; then
77+ # backup of systemd unit file and mongod.conf file
78+ \c p /usr/lib/systemd/system/mongod.service /usr/lib/systemd/system/mongod.service.bak
79+ \c p -f /etc/mongod.conf /etc/mongod.conf.bak
80+ # uninstall mognodb
81+ yum erase -y mongodb-org mongodb-org-mongos mongodb-org-server mongodb-org-shell mongodb-org-tools
82+ fi
83+
84+ if [ -f /etc/lsb-release ]; then
85+ # uninstall mognodb
86+ apt-get remove -y mongodb-org mongodb-org-mongos mongodb-org-server mongodb-org-shell mongodb-org-tools
87+ fi
88+ fi
89+
90+ if [ -f /etc/redhat-release ]; then
91+ # install latest mongodb
92+ # select source based on release
93+ echo " [mongodb-org-8.0]
94+ name=MongoDB Repository
95+ baseurl=https://repo.mongodb.org/yum/redhat/${CENTOS_MAJOR} /mongodb-org/8.0/x86_64/
96+ gpgcheck=1
97+ enabled=1
98+ gpgkey=https://pgp.mongodb.com/server-8.0.asc" > /etc/yum.repos.d/mongodb-org-8.0.repo
99+
100+ yum install -y mongodb-org
101+ \c p -f /etc/mongod.conf.bak /etc/mongod.conf
102+ fi
103+
104+ if [ -f /etc/lsb-release ]; then
105+ # install latest mongodb
106+ curl -fsSL https://www.mongodb.org/static/pgp/server-8.0.asc | sudo gpg -o /usr/share/keyrings/mongodb-server-8.0.gpg --dearmor
107+
108+ echo " deb [ arch=amd64,arm64 signed-by=/usr/share/keyrings/mongodb-server-8.0.gpg ] https://repo.mongodb.org/apt/ubuntu ${UBUNTU_RELEASE} /mongodb-org/8.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-8.0.list
109+ apt-get update
110+ # install mongodb
111+ apt-get -o Dpkg::Options::=" --force-confdef" " --force-confold" || (echo " Failed to install mongodb." ; exit)
112+ fi
113+
114+ if [ -f /etc/redhat-release ]; then
115+ # Restoring systemd unit file
116+ \c p -f /usr/lib/systemd/system/mongod.service.bak /usr/lib/systemd/system/mongod.service
117+ systemctl daemon-reload
118+ fi
119+
120+ # mongodb might need to be started
121+ systemctl restart mongod || echo " mongodb systemctl job does not exist"
122+
123+ # nc not available on latest centos
124+ # until nc -z localhost 27017; do echo Waiting for MongoDB; sleep 1; done
125+ mongosh --nodb --eval ' var conn; print("Waiting for MongoDB connection on port 27017. Exit if incorrect port"); var cnt = 0; while(!conn && cnt <= 300){try{conn = new Mongo("localhost:27017");}catch(Error){}sleep(1000);cnt++;}'
126+
127+ if [ " $isAuth " -eq " 1" ; then
128+ echo " run this command with authentication to upgrade to 8.0"
129+ echo " mongosh admin --eval \" db.adminCommand( { setFeatureCompatibilityVersion: \\ \8.0\\\" , confirm: true } )\" "
130+ elif ! mongosh admin --eval " printjson(db.adminCommand( { getParameter: 1, featureCompatibilityVersion: 1 } ))" ; then
131+ echo " Could not connect to MongodB, run this command when Mongo is up and running"
132+ echo " mongosh admin --eval \" db.adminCommand( { setFeatureCompatibilityVersion: \\\" 8.0\\\" , confirm: true } )\" "
133+ else
134+ mongosh admin --eval " printjson(db.adminCommand( { getParameter: 1, featureCompatibilityVersion: 1 } ))"
135+ mongosh admin --eval " db.adminCommand( { setFeatureCompatibilityVersion: \" 8.0\" , confirm: true } )"
136+ echo " Finished upgrading script"
137+ fi
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