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coreosuclv [2016/11/03 20:29] moliver |
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Desde alli se debe escalar en privilecios con un sudo y depsues lanzar el instalador: | Desde alli se debe escalar en privilecios con un sudo y depsues lanzar el instalador: | ||
- | coreos-install -d /dev/sda | + | coreos-install -d /dev/sda -c cloud-config.yaml |
- | se le puede pasar alguna informacion de configuracion de ser necesario asi: | + | Es muy importante pasar el cloudconfig para no enrredarse despues con la autentificacion. |
- | coreos-install -d /dev/sda -c cloud-config.yaml | + | Aqui se muestra como: https://linuxconfig.org/how-to-perform-a-bare-metal-installation-of-coreos-linux |
+ | |||
+ | Y para poder poner una ip fija se puede mirar aqui: | ||
+ | https://coreos.com/os/docs/latest/network-config-with-networkd.html | ||
+ | |||
+ | Un ejemplo de cloud-config.yaml | ||
+ | <code> | ||
+ | #cloud-config | ||
+ | hostname: coreos1-node | ||
+ | ssh_authorized_keys: | ||
+ | - ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDaF6E4c9jqL9cF1+XbfHAaGZTIDWn78grUmLbt+BkJVVQhQZ1rdkB40BbpZH31OlCVbg59qbCkYgT4NMRF/WzIVyEZWOTdc4Vn1lwHYSCnbR3aTAUVWeut+rHUn9SIxcZ+yOW5WLByTGHs+vCK478rkoMGA70IcvxWBUQu/KccJpK9RTGtuBPZ23YcBjSJyM2aO1uxNP1VZJqS52PDZN6rC+H0NSbYphrIPjtGNhocBHK9WT9mUUrevK8NflzHtS41MLsGkOd/RgHsIxPG9bbZ4mdS2vkJfKZDk72l2G90mOGSZh2/gH0NiEmrxsepfyRL13wPp3clerTkTY4DgG7P taqchi@Manuels-MacBook-Pro.local | ||
+ | - ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC7FeXra7tZNkjrDMhi1N+Aebjo5SvPXIY4Wc3KZZ7F8eEzdYaXenuV9LWarzwd/cxTyWmZT5HSUK+KcVa/k+RgM6JMUhEGh+nbfxqeZIOFOUF91cKXW6w6tSS+PBdWszlFv0hhoZb/tJgnXZLBzHICJ+Mz0Gio0BeBMX1fNAtyL7vE9NcuCoq73hDPYf3Zc1UMNx6PH+xvWN1AT+oonUk0w73J3emMldN5/5zJvmKlFOM1ygkj5lpfwPZY2jjkC+p7Ka+wus/2nnIz89MkQqX8RA7jSVfvH7B3NLxcd9qBRextvANl0bVMgEDShSJLnHBRUC+6pEEdyoyaMXmNaq95 root@pm01.sustam.com | ||
+ | users: | ||
+ | - name: core | ||
+ | passwd: $1$Y9OJDrE3$Bv4veLMp1fo6P8jN1/L1g0 | ||
+ | coreos: | ||
+ | units: | ||
+ | - name: systemd-networkd.service | ||
+ | command: stop | ||
+ | - name: 00-ens18.network | ||
+ | runtime: true | ||
+ | content: | | ||
+ | [Match] | ||
+ | Name=ens18 | ||
+ | |||
+ | [Network] | ||
+ | DNS=8.8.8.8 | ||
+ | Address=10.0.0.11/24 | ||
+ | Gateway=10.0.0.1 | ||
+ | - name: down-interfaces.service | ||
+ | command: start | ||
+ | content: | | ||
+ | [Service] | ||
+ | Type=oneshot | ||
+ | ExecStart=/usr/bin/ip link set ens18 down | ||
+ | ExecStart=/usr/bin/ip addr flush dev ens18 | ||
+ | - name: systemd-networkd.service | ||
+ | command: restart | ||
+ | - name: etcd2.service | ||
+ | command: start | ||
+ | - name: fleet.service | ||
+ | command: start | ||
+ | etcd2: | ||
+ | # generate a new token for each unique cluster from https://discovery.etcd.io/new?size=3 | ||
+ | # specify the initial size of your cluster with ?size=X | ||
+ | discovery: https://discovery.etcd.io/8133f8b97fd5988b9a25627014f2e6f7 | ||
+ | advertise-client-urls: http://10.0.0.11:2379,http://10.0.0.11:4001 | ||
+ | initial-advertise-peer-urls: http://10.0.0.11:2380 | ||
+ | # listen on the official ports 2379, 2380 and one legacy port 4001: | ||
+ | listen-client-urls: http://0.0.0.0:2379,http://0.0.0.0:4001 | ||
+ | listen-peer-urls: http://10.0.0.11:2380 | ||
+ | fleet: | ||
+ | public-ip: 10.0.0.11 # used for fleetctl ssh command | ||
+ | |||
+ | </code> | ||
Al terminar el proceso de instalacion debe verse algo como: | Al terminar el proceso de instalacion debe verse algo como: | ||
{{:wiki:screen_shot_2016-11-02_at_10.18.36_am.png?direct&200|}} | {{:wiki:screen_shot_2016-11-02_at_10.18.36_am.png?direct&200|}} | ||
+ | |||
+ | |||
+ | Reiniciar todos los nodos y comprobar que no se vean errores. | ||
+ | |||
+ | Para ver si el servicio etcd2 esta ok en todos se puede usar: | ||
+ | |||
+ | systemctl status etcd2 | ||
+ | |||
+ | La salida debe ser asi mas o menos | ||
+ | <code> | ||
+ | ● etcd2.service - etcd2 | ||
+ | Loaded: loaded (/usr/lib/systemd/system/etcd2.service; disabled; vendor preset: disabled) | ||
+ | Drop-In: /run/systemd/system/etcd2.service.d | ||
+ | └─20-cloudinit.conf | ||
+ | Active: active (running) since Thu 2016-11-03 20:19:39 UTC; 8min ago | ||
+ | Main PID: 1414 (etcd2) | ||
+ | Tasks: 10 | ||
+ | Memory: 35.4M | ||
+ | CPU: 3.930s | ||
+ | CGroup: /system.slice/etcd2.service | ||
+ | └─1414 /usr/bin/etcd2 | ||
+ | |||
+ | Nov 03 20:19:39 coreos1-node etcd2[1414]: 29b777c31723e490 [logterm: 1, index: 3, vote: 29b777c31723e490] rejected vote from 46b0f4bd80d1424d [logterm: 1, index: 3] at term 2 | ||
+ | Nov 03 20:19:39 coreos1-node etcd2[1414]: the connection with 50499cd27cdbe30d became active | ||
+ | Nov 03 20:19:39 coreos1-node etcd2[1414]: 29b777c31723e490 received vote rejection from 46b0f4bd80d1424d at term 2 | ||
+ | Nov 03 20:19:39 coreos1-node etcd2[1414]: 29b777c31723e490 [quorum:2] has received 1 votes and 1 vote rejections | ||
+ | Nov 03 20:19:39 coreos1-node etcd2[1414]: 29b777c31723e490 received vote rejection from 50499cd27cdbe30d at term 2 | ||
+ | Nov 03 20:19:39 coreos1-node etcd2[1414]: 29b777c31723e490 [quorum:2] has received 1 votes and 2 vote rejections | ||
+ | Nov 03 20:19:39 coreos1-node etcd2[1414]: 29b777c31723e490 became follower at term 2 | ||
+ | Nov 03 20:19:39 coreos1-node etcd2[1414]: raft.node: 29b777c31723e490 elected leader 46b0f4bd80d1424d at term 2 | ||
+ | Nov 03 20:19:40 coreos1-node etcd2[1414]: published {Name:69436ca671524a17acedcf93c541e8d3 ClientURLs:[http://10.0.0.11:2379 http://10.0.0.11:4001]} to cluster f7a76f3a444892c0 | ||
+ | Nov 03 20:19:40 coreos1-node etcd2[1414]: set the initial cluster version to 2.3 | ||
+ | </code> | ||
+ | |||
+ | |||
+ | Para saber si el cluster de etcd2 esta trabajado correctamente que es la idea de todo esto se puede ejecutar en un nodo algo como: | ||
+ | |||
+ | etcdctl set /message "Hola" | ||
+ | |||
+ | y en otro pedir el valor | ||
+ | |||
+ | etcdctl get /message y deberia devolver Hola | ||
+ | |||