How to mount multiple NFS mounts that point to the same place in a Docker image using docker-compose Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern) Data science time! April 2019 and salary with experience The Ask Question Wizard is Live!multiple volumes to single target directory?How is Docker different from a virtual machine?How to list containers in DockerHow to get a Docker container's IP address from the host?How to remove old Docker containersHow does one remove an image in Docker?How to deal with persistent storage (e.g. databases) in DockerHow to copy Docker images from one host to another without using a repositoryDocker Compose vs. Dockerfile - which is better?How to persist data in a dockerized postgres database using volumesHow to add a volume from a diferent server to my docker-compose file
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How to mount multiple NFS mounts that point to the same place in a Docker image using docker-compose
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern)
Data science time! April 2019 and salary with experience
The Ask Question Wizard is Live!multiple volumes to single target directory?How is Docker different from a virtual machine?How to list containers in DockerHow to get a Docker container's IP address from the host?How to remove old Docker containersHow does one remove an image in Docker?How to deal with persistent storage (e.g. databases) in DockerHow to copy Docker images from one host to another without using a repositoryDocker Compose vs. Dockerfile - which is better?How to persist data in a dockerized postgres database using volumesHow to add a volume from a diferent server to my docker-compose file
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Different than this one here.
I want to link multiple NFS mounts that point to the same local location in a docker-compose image. I put the following lines in a docker-compose file:
volumes:
nfs3:
driver: local
driver_opts:
type: nfs
o: addr=172.16.20.5,rw
device: ":/tmp/mount1"
nfs4:
driver: local
driver_opts:
type: nfs
o: addr=172.16.20.6,rw
device: ":/tmp/mount2"
And then in the services part, I have a postgres instance that has the following volume config:
volumes:
- nfs3:/bitnami
- nfs4:/bitnami
Unfortunately, when I write to /bitnami, it only writes to /tmp/mount2 and not /tmp/mount1. Is there a good way to be able to write to both NFS mounts?
docker docker-compose nfs
asked Mar 8 at 20:25
AndreasKraljAndreasKralj
326112
add a comment |
Different than this one here.
I want to link multiple NFS mounts that point to the same local location in a docker-compose image. I put the following lines in a docker-compose file:
volumes:
nfs3:
driver: local
driver_opts:
type: nfs
o: addr=172.16.20.5,rw
device: ":/tmp/mount1"
nfs4:
driver: local
driver_opts:
type: nfs
o: addr=172.16.20.6,rw
device: ":/tmp/mount2"
And then in the services part, I have a postgres instance that has the following volume config:
volumes:
- nfs3:/bitnami
- nfs4:/bitnami
Unfortunately, when I write to /bitnami, it only writes to /tmp/mount2 and not /tmp/mount1. Is there a good way to be able to write to both NFS mounts?
docker docker-compose nfs
asked Mar 8 at 20:25
AndreasKraljAndreasKralj
326112
add a comment |
Different than this one here.
I want to link multiple NFS mounts that point to the same local location in a docker-compose image. I put the following lines in a docker-compose file:
volumes:
nfs3:
driver: local
driver_opts:
type: nfs
o: addr=172.16.20.5,rw
device: ":/tmp/mount1"
nfs4:
driver: local
driver_opts:
type: nfs
o: addr=172.16.20.6,rw
device: ":/tmp/mount2"
And then in the services part, I have a postgres instance that has the following volume config:
volumes:
- nfs3:/bitnami
- nfs4:/bitnami
Unfortunately, when I write to /bitnami, it only writes to /tmp/mount2 and not /tmp/mount1. Is there a good way to be able to write to both NFS mounts?
docker docker-compose nfs
asked Mar 8 at 20:25
AndreasKraljAndreasKralj
326112
Different than this one here.
I want to link multiple NFS mounts that point to the same local location in a docker-compose image. I put the following lines in a docker-compose file:
volumes:
nfs3:
driver: local
driver_opts:
type: nfs
o: addr=172.16.20.5,rw
device: ":/tmp/mount1"
nfs4:
driver: local
driver_opts:
type: nfs
o: addr=172.16.20.6,rw
device: ":/tmp/mount2"
And then in the services part, I have a postgres instance that has the following volume config:
volumes:
- nfs3:/bitnami
- nfs4:/bitnami
Unfortunately, when I write to /bitnami, it only writes to /tmp/mount2 and not /tmp/mount1. Is there a good way to be able to write to both NFS mounts?
docker docker-compose nfs
docker docker-compose nfs
asked Mar 8 at 20:25
AndreasKraljAndreasKralj
326112
asked Mar 8 at 20:25
AndreasKraljAndreasKralj
326112
asked Mar 8 at 20:25
AndreasKraljAndreasKralj
326112
asked Mar 8 at 20:25
AndreasKraljAndreasKralj
326112
asked Mar 8 at 20:25
AndreasKraljAndreasKralj
326112
326112
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
The docker volume system uses the linux mount interface. Only one thing can be mounted at a time for a particular location. The most recent mount is the mount that is accessible.
This question discusses what happens to files that were in a particular location when a mount happens.
In your example, if files are only showing up on your /tmp/mount2 nfs share, then that was the most recent filesystem to be mounted at /bitnami.
Similarly, if I try to mount two USB drives at the same location on a linux host, only the most recently mounted one will be the one available at that location.
answered Mar 8 at 20:33
programmerqprogrammerq
3,606928
Gotcha, thanks for the answer! Do you recommend an alternate method of storing data from one Docker container to multiple devices at the same time?
– AndreasKralj
Mar 8 at 20:40
1
I don't see this as a docker specific question. Docker is just a thing that starts processes and sets up mounts for you, so you could restate your question as follows: How would one store data written by my process/application in more than one location?" There are lots of answers-- unison, rsync, change your application to write in two places, etc...
– programmerq
Mar 8 at 20:42
Thanks. I'll look into those. The specific application I'm using is postgresql so I'll try and find a way to do that with postgresql.
– AndreasKralj
Mar 8 at 20:43
Postgres does have replication features built in, but that usually means that you will be running different instances of postgres. What is your motivation to have one postgres with data in multiple places? It isn't really a common postgres question.
– programmerq
Mar 8 at 20:45
The main motivation is so that if one NFS server goes down, we have another that the postgresql container will write to as permanent storage. The reason to have the external storage on NFS servers is so that if the server hosting the Docker container goes down, we'll still have the posgresql data. If there's a better way, please let me know.
– AndreasKralj
Mar 8 at 20:50
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The docker volume system uses the linux mount interface. Only one thing can be mounted at a time for a particular location. The most recent mount is the mount that is accessible.
This question discusses what happens to files that were in a particular location when a mount happens.
In your example, if files are only showing up on your /tmp/mount2 nfs share, then that was the most recent filesystem to be mounted at /bitnami.
Similarly, if I try to mount two USB drives at the same location on a linux host, only the most recently mounted one will be the one available at that location.
answered Mar 8 at 20:33
programmerqprogrammerq
3,606928
Gotcha, thanks for the answer! Do you recommend an alternate method of storing data from one Docker container to multiple devices at the same time?
– AndreasKralj
Mar 8 at 20:40
1
I don't see this as a docker specific question. Docker is just a thing that starts processes and sets up mounts for you, so you could restate your question as follows: How would one store data written by my process/application in more than one location?" There are lots of answers-- unison, rsync, change your application to write in two places, etc...
– programmerq
Mar 8 at 20:42
Thanks. I'll look into those. The specific application I'm using is postgresql so I'll try and find a way to do that with postgresql.
– AndreasKralj
Mar 8 at 20:43
Postgres does have replication features built in, but that usually means that you will be running different instances of postgres. What is your motivation to have one postgres with data in multiple places? It isn't really a common postgres question.
– programmerq
Mar 8 at 20:45
The main motivation is so that if one NFS server goes down, we have another that the postgresql container will write to as permanent storage. The reason to have the external storage on NFS servers is so that if the server hosting the Docker container goes down, we'll still have the posgresql data. If there's a better way, please let me know.
– AndreasKralj
Mar 8 at 20:50
add a comment |
The docker volume system uses the linux mount interface. Only one thing can be mounted at a time for a particular location. The most recent mount is the mount that is accessible.
This question discusses what happens to files that were in a particular location when a mount happens.
In your example, if files are only showing up on your /tmp/mount2 nfs share, then that was the most recent filesystem to be mounted at /bitnami.
Similarly, if I try to mount two USB drives at the same location on a linux host, only the most recently mounted one will be the one available at that location.
answered Mar 8 at 20:33
programmerqprogrammerq
3,606928
Gotcha, thanks for the answer! Do you recommend an alternate method of storing data from one Docker container to multiple devices at the same time?
– AndreasKralj
Mar 8 at 20:40
1
I don't see this as a docker specific question. Docker is just a thing that starts processes and sets up mounts for you, so you could restate your question as follows: How would one store data written by my process/application in more than one location?" There are lots of answers-- unison, rsync, change your application to write in two places, etc...
– programmerq
Mar 8 at 20:42
Thanks. I'll look into those. The specific application I'm using is postgresql so I'll try and find a way to do that with postgresql.
– AndreasKralj
Mar 8 at 20:43
Postgres does have replication features built in, but that usually means that you will be running different instances of postgres. What is your motivation to have one postgres with data in multiple places? It isn't really a common postgres question.
– programmerq
Mar 8 at 20:45
The main motivation is so that if one NFS server goes down, we have another that the postgresql container will write to as permanent storage. The reason to have the external storage on NFS servers is so that if the server hosting the Docker container goes down, we'll still have the posgresql data. If there's a better way, please let me know.
– AndreasKralj
Mar 8 at 20:50
add a comment |
The docker volume system uses the linux mount interface. Only one thing can be mounted at a time for a particular location. The most recent mount is the mount that is accessible.
This question discusses what happens to files that were in a particular location when a mount happens.
In your example, if files are only showing up on your /tmp/mount2 nfs share, then that was the most recent filesystem to be mounted at /bitnami.
Similarly, if I try to mount two USB drives at the same location on a linux host, only the most recently mounted one will be the one available at that location.
answered Mar 8 at 20:33
programmerqprogrammerq
3,606928
The docker volume system uses the linux mount interface. Only one thing can be mounted at a time for a particular location. The most recent mount is the mount that is accessible.
This question discusses what happens to files that were in a particular location when a mount happens.
In your example, if files are only showing up on your /tmp/mount2 nfs share, then that was the most recent filesystem to be mounted at /bitnami.
Similarly, if I try to mount two USB drives at the same location on a linux host, only the most recently mounted one will be the one available at that location.
answered Mar 8 at 20:33
programmerqprogrammerq
3,606928
answered Mar 8 at 20:33
programmerqprogrammerq
3,606928
answered Mar 8 at 20:33
programmerqprogrammerq
3,606928
answered Mar 8 at 20:33
programmerqprogrammerq
3,606928
3,606928
Gotcha, thanks for the answer! Do you recommend an alternate method of storing data from one Docker container to multiple devices at the same time?
– AndreasKralj
Mar 8 at 20:40
1
I don't see this as a docker specific question. Docker is just a thing that starts processes and sets up mounts for you, so you could restate your question as follows: How would one store data written by my process/application in more than one location?" There are lots of answers-- unison, rsync, change your application to write in two places, etc...
– programmerq
Mar 8 at 20:42
Thanks. I'll look into those. The specific application I'm using is postgresql so I'll try and find a way to do that with postgresql.
– AndreasKralj
Mar 8 at 20:43
Postgres does have replication features built in, but that usually means that you will be running different instances of postgres. What is your motivation to have one postgres with data in multiple places? It isn't really a common postgres question.
– programmerq
Mar 8 at 20:45
The main motivation is so that if one NFS server goes down, we have another that the postgresql container will write to as permanent storage. The reason to have the external storage on NFS servers is so that if the server hosting the Docker container goes down, we'll still have the posgresql data. If there's a better way, please let me know.
– AndreasKralj
Mar 8 at 20:50
add a comment |
Gotcha, thanks for the answer! Do you recommend an alternate method of storing data from one Docker container to multiple devices at the same time?
– AndreasKralj
Mar 8 at 20:40
1
I don't see this as a docker specific question. Docker is just a thing that starts processes and sets up mounts for you, so you could restate your question as follows: How would one store data written by my process/application in more than one location?" There are lots of answers-- unison, rsync, change your application to write in two places, etc...
– programmerq
Mar 8 at 20:42
Thanks. I'll look into those. The specific application I'm using is postgresql so I'll try and find a way to do that with postgresql.
– AndreasKralj
Mar 8 at 20:43
Postgres does have replication features built in, but that usually means that you will be running different instances of postgres. What is your motivation to have one postgres with data in multiple places? It isn't really a common postgres question.
– programmerq
Mar 8 at 20:45
The main motivation is so that if one NFS server goes down, we have another that the postgresql container will write to as permanent storage. The reason to have the external storage on NFS servers is so that if the server hosting the Docker container goes down, we'll still have the posgresql data. If there's a better way, please let me know.
– AndreasKralj
Mar 8 at 20:50
Gotcha, thanks for the answer! Do you recommend an alternate method of storing data from one Docker container to multiple devices at the same time?
– AndreasKralj
Mar 8 at 20:40
Gotcha, thanks for the answer! Do you recommend an alternate method of storing data from one Docker container to multiple devices at the same time?
– AndreasKralj
Mar 8 at 20:40
1
1
I don't see this as a docker specific question. Docker is just a thing that starts processes and sets up mounts for you, so you could restate your question as follows: How would one store data written by my process/application in more than one location?" There are lots of answers-- unison, rsync, change your application to write in two places, etc...
– programmerq
Mar 8 at 20:42
I don't see this as a docker specific question. Docker is just a thing that starts processes and sets up mounts for you, so you could restate your question as follows: How would one store data written by my process/application in more than one location?" There are lots of answers-- unison, rsync, change your application to write in two places, etc...
– programmerq
Mar 8 at 20:42
Thanks. I'll look into those. The specific application I'm using is postgresql so I'll try and find a way to do that with postgresql.
– AndreasKralj
Mar 8 at 20:43
Thanks. I'll look into those. The specific application I'm using is postgresql so I'll try and find a way to do that with postgresql.
– AndreasKralj
Mar 8 at 20:43
Postgres does have replication features built in, but that usually means that you will be running different instances of postgres. What is your motivation to have one postgres with data in multiple places? It isn't really a common postgres question.
– programmerq
Mar 8 at 20:45
Postgres does have replication features built in, but that usually means that you will be running different instances of postgres. What is your motivation to have one postgres with data in multiple places? It isn't really a common postgres question.
– programmerq
Mar 8 at 20:45
The main motivation is so that if one NFS server goes down, we have another that the postgresql container will write to as permanent storage. The reason to have the external storage on NFS servers is so that if the server hosting the Docker container goes down, we'll still have the posgresql data. If there's a better way, please let me know.
– AndreasKralj
Mar 8 at 20:50
The main motivation is so that if one NFS server goes down, we have another that the postgresql container will write to as permanent storage. The reason to have the external storage on NFS servers is so that if the server hosting the Docker container goes down, we'll still have the posgresql data. If there's a better way, please let me know.
– AndreasKralj
Mar 8 at 20:50
add a comment |
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