Set up sudo
Table of contents
Setting up sudo is straightforward, we recommend managing it by copying trusted files from a repository. The following bundle will copy a master sudoers file to/etc/sudoers (/tmp/sudoers in this example - change it to/etc/sudoers to use in production).
code
bodycommoncontrol{bundlesequence=>{"sudoers"};inputs=>{"libraries/cfengine_stdlib.cf"};}bundleagentsudoers{# Define the master location of the sudoers filevars:"master_location"string=>"/var/cfengine/masterfiles";# Copy the master sudoers file to /etc/sudoersfiles:"/tmp/sudoers"# change to /etc/sudoers to use in productioncomment=>"Make sure the sudo configuration is secure and up to date",perms=>mog("440","root","root"),copy_from=>secure_cp("$(master_location)/sudoers","$(sys.policy_hub)");}We recommend editing the master sudoers file usingvisudo or a similar tool. It is possible to use CFEngine's file editing capabilities to edit sudoers directly, but this does not guarantee syntax correctness and you might end up locked out.
Example run:
command
cf-agent -f temp.cf -KI output
2013-06-08T19:13:21-0700 info: This agent is bootstrapped to '192.168.183.208'2013-06-08T19:13:22-0700 info: Running full policy integrity checks2013-06-08T19:13:23-0700 info: Copying from '192.168.183.208:/var/cfengine/masterfiles/sudoers'2013-06-08T19:13:23-0700 info: /sudoers/files/'/tmp/sudoers': Object '/tmp/sudoers' had permission 0600, changed it to 0440For reference we include an example of a simple sudoers file:
code
# /etc/sudoers## This file MUST be edited with the 'visudo' command as root.#Defaults env_reset# User privilege specificationroot ALL=(ALL) ALL# Allow members of group sudo to execute any command after they have# provided their password%sudo ALL=(ALL) ALL# Members of the admin group may gain root privileges%admin ALL=(ALL) ALLjohn ALL=(ALL) ALL- Overview
- Getting started
- Reference
- Components
- Functions
- accessedbefore
- accumulated
- ago
- and
- basename
- bundlesmatching
- bundlestate
- callstack_callers
- callstack_promisers
- canonify
- canonifyuniquely
- cf_version_after
- cf_version_at
- cf_version_before
- cf_version_between
- cf_version_maximum
- cf_version_minimum
- changedbefore
- classesmatching
- classfiltercsv
- classify
- classmatch
- concat
- countclassesmatching
- countlinesmatching
- data_expand
- data_readstringarray
- data_readstringarrayidx
- data_regextract
- data_sysctlvalues
- datastate
- difference
- dirname
- diskfree
- escape
- eval
- every
- execresult
- execresult_as_data
- expandrange
- file_hash
- fileexists
- filesexist
- filesize
- filestat
- filter
- findfiles
- findfiles_up
- findprocesses
- format
- getclassmetatags
- getenv
- getfields
- getgid
- getindices
- getuid
- getuserinfo
- getusers
- getvalues
- getvariablemetatags
- grep
- groupexists
- hash
- hash_to_int
- hashmatch
- host2ip
- hostinnetgroup
- hostrange
- hostsseen
- hostswithclass
- hubknowledge
- ifelse
- int
- intersection
- ip2host
- iprange
- irange
- isdir
- isexecutable
- isgreaterthan
- isipinsubnet
- islessthan
- islink
- isnewerthan
- isplain
- isreadable
- isvariable
- join
- lastnode
- laterthan
- ldaparray
- ldaplist
- ldapvalue
- length
- lsdir
- makerule
- maparray
- mapdata
- maplist
- max
- mean
- mergedata
- min
- network_connections
- none
- not
- now
- nth
- on
- or
- packagesmatching
- packageupdatesmatching
- parseintarray
- parsejson
- parserealarray
- parsestringarray
- parsestringarrayidx
- parseyaml
- peerleader
- peerleaders
- peers
- processexists
- product
- randomint
- read_module_protocol
- readcsv
- readdata
- readenvfile
- readfile
- readintarray
- readintlist
- readjson
- readrealarray
- readreallist
- readstringarray
- readstringarrayidx
- readstringlist
- readtcp
- readyaml
- regarray
- regcmp
- regex_replace
- regextract
- registryvalue
- regldap
- regline
- reglist
- remoteclassesmatching
- remotescalar
- returnszero
- reverse
- rrange
- selectservers
- shuffle
- some
- sort
- splayclass
- splitstring
- storejson
- strcmp
- strftime
- string
- string_downcase
- string_head
- string_length
- string_mustache
- string_replace
- string_reverse
- string_split
- string_tail
- string_trim
- string_upcase
- sublist
- sum
- sysctlvalue
- translatepath
- type
- unique
- url_get
- usemodule
- userexists
- validdata
- validjson
- variablesmatching
- variablesmatching_as_data
- variance
- version_compare
- Language concepts
- Masterfiles Policy Framework
- promises.cf
- .no-distrib/
- update.cf
- standalone_self_upgrade.cf
- cfe_internal/
- cfe_internal/CFE_cfengine.cf
- cfe_internal/core/
- cfe_internal/core/watchdog
- cfe_internal/core/watchdog/watchdog.cf
- cfe_internal/enterprise/
- cfe_internal/enterprise/federation/
- cfe_internal/enterprise/federation/federation.cf
- cfe_internal/recommendations.cf
- cfe_internal/update/
- cfe_internal/update/cfe_internal_dc_workflow.cf
- cfe_internal/update/cfe_internal_update_from_repository.cf
- cfe_internal/update/lib.cf
- cfe_internal/update/systemd_units.cf
- cfe_internal/update/update_bins.cf
- cfe_internal/update/update_policy.cf
- cfe_internal/update/update_processes.cf
- controls/
- controls/cf_agent.cf
- controls/cf_execd.cf
- controls/cf_hub.cf
- controls/cf_monitord.cf
- controls/cf_runagent.cf
- controls/cf_serverd.cf
- controls/def.cf
- controls/def_inputs.cf
- controls/reports.cf
- controls/update_def.cf
- controls/update_def_inputs.cf
- inventory/
- inventory/any.cf
- inventory/debian.cf
- inventory/freebsd.cf
- inventory/generic.cf
- inventory/linux.cf
- inventory/lsb.cf
- inventory/macos.cf
- inventory/os.cf
- inventory/redhat.cf
- inventory/suse.cf
- inventory/windows.cf
- lib/
- lib/autorun.cf
- lib/bundles.cf
- lib/cfe_internal.cf
- lib/cfe_internal_hub.cf
- lib/cfengine_enterprise_hub_ha.cf
- lib/commands.cf
- lib/common.cf
- lib/databases.cf
- lib/edit_xml.cf
- lib/event.cf
- lib/examples.cf
- lib/feature.cf
- lib/files.cf
- lib/guest_environments.cf
- lib/monitor.cf
- lib/packages.cf
- lib/paths.cf
- lib/processes.cf
- lib/reports.cf
- lib/services.cf
- lib/stdlib.cf
- lib/storage.cf
- lib/testing.cf
- lib/users.cf
- lib/vcs.cf
- modules/
- modules/mustache/
- modules/packages/
- modules/packages/vendored/
- modules/promises/
- modules/promises/cfengine.py
- modules/promises/cfengine.sh
- services/
- services/autorun/
- services/main.cf
- Macros
- Promise types
- Special variables
- All promise and body types
- Release notes
- Web UI
- Settings
- Health
- Hosts
- Alerts and notifications
- Custom actions for alerts
- Enterprise reporting
- Federated reporting
- Measurements app
- Hub administration
- Decommissioning hosts
- Extending Mission Portal
- Extending query builder in Mission Portal
- Adjusting schedules
- Backup and restore
- Configure a custom LDAP port
- Custom LDAPs certificate
- Custom SSL certificate
- Enable plain http
- Lookup license info
- Policy deployment
- Public key distribution
- Re-installing Enterprise hub
- Regenerate self signed SSL certificate
- Reset administrative credentials
- Debugging Mission Portal
- License
- Examples and tutorials
- Example snippets
- General examples
- Administration examples
- Measuring examples
- Software administration examples
- Commands, scripts, and execution examples
- File and directory examples
- File template examples
- Interacting with directory services
- Database examples
- Network examples
- System security examples
- System information examples
- System administration examples
- System file examples
- Windows registry examples
- File permissions
- User management examples
- Common promise patterns
- Aborting execution
- Change detection
- Check filesystem space
- Copy single files
- Create files and directories
- Customize message of the day
- Distribute ssh keys
- Ensure a process is not running
- Ensure a service is enabled and running
- Find the MAC address
- Install packages
- Mount NFS filesystem
- Restart a process
- Set up name resolution with DNS
- Set up sudo
- Set up time management through NTP
- Updating from a central policy server
- Tutorials
- JSON and YAML support in CFEngine
- Installing CFEngine Enterprise agent
- Managing local users
- Managing network time protocol
- Managing processes and services
- Package management
- Writing CFEngine policy
- Distributing files from a central location
- File editing
- Reporting and remediation of security vulnerabilities
- Masterfiles Policy Framework upgrade
- Tags for variables, classes, and bundles
- Custom inventory
- Dashboard alerts
- Integrating alerts with PagerDuty
- Integrating alerts with ticketing systems
- Integrating with Sumo Logic
- Rendering files with Mustache templates
- Reporting
- File comparison
- High availability
- Writing and serving policy
- Example snippets
- Resources
- FAQ
- Why knowledge management?
- Requesting a CFEngine Enterprise License
- Uninstalling / reinstalling
- Agent output email
- Debugging slow queries
- Enterprise Report Filtering
- Enterprise report collection
- Enterprise reporting database
- How can I tell what classes and variables are defined?
- How do I find the public key for a given host
- How do I fix trust after an IP change?
- How do I fix undefined body errors?
- How do I integrate custom policy?
- How do I pass a data type variable?
- Manual execution
- Mustache templating
- Unable to log into Mission Portal
- Users
- What is promise locking?
- Why are remote agents not updating?
- Why are some files inside masterfiles not being updated/distributed?
- Why does CFEngine install into /var/cfengine instead of following the FHS?
- Bootstrapping
- Tuning PostgreSQL
- What did CFEngine do?
- External resources
- Additional topics
- Best practices
- FAQ
- API
- Enterprise API examples
- Enterprise API reference
- Actions API
- Build API
- CMDB API
- Changes REST API
- Federated reporting configuration API
- File changes API
- Health diagnostic API
- Host REST API
- Import & export API
- Import & export compliance report API
- Inventory API
- LDAP authentication API
- Personal groups API
- Query REST API
- SQL schema
- SSH keys API
- Shared groups API
- Status and settings REST API
- Two-factor authentication API
- Users and access-control REST API
- VCS settings API
- Web RBAC API