use ubuntu image for size

_episodes/23.run-hpc.md

@@ -32,31 +32,19 @@ cd ~/sc-tutorials/exercises
 
 #### Singularity
 
-Download ECP's Ubuntu 20.04 image using:
+Download Ubuntu 20.04 image using:
 
 ```bash
-singularity pull docker://ecpe4s/ubuntu20.04
+singularity pull docker://ubuntu:20.04
 ```
 ```output
 INFO:    Converting OCI blobs to SIF format
 INFO:    Starting build...
 Getting image source signatures
-Copying blob 675920708c8b done
-Copying blob 8ba2454310fe done
-Copying blob 14833710fc9f done
 ...
-Copying blob ab9bb56692d1 done
-Copying blob 6d1c299f692a done
-Copying config 713eae3dbe done
 Writing manifest to image destination
 Storing signatures
-2022/10/11 05:10:39  info unpack layer: sha256:675920708c8bf10fbd02693dc8f43ee7dbe0a99cdfd55e06e6f1a8b43fd08e3f
-2022/10/11 05:10:40  info unpack layer: sha256:8ba2454310fee5d84714acde4437d48a888844a0e569b9df36b5637073fad9fb
-2022/10/11 05:10:41  info unpack layer: sha256:14833710fc9f06524846486bbb96c1a1043689386133e714c24ad3ebfad720db
 ...
-2022/10/11 05:11:09  info unpack layer: sha256:b0bd5c6e49cc76e93dab9251446c4294eac10028483fef8c5209d0f9af1bfc60
-2022/10/11 05:11:09  info unpack layer: sha256:ab9bb56692d116c3c07c5a2dd427186196e2e0a3417c791404ba09bd69e80e91
-2022/10/11 05:11:09  info unpack layer: sha256:6d1c299f692aab503b4041bdf7896c185248d1acc4f8b7d73740452f0cfbe4d3
 INFO:    Creating SIF file...
 ```
 
@@ -68,27 +56,27 @@ The image file is just in your current directory:
 ls
 ```
 ```output
-ubuntu20.04_latest.sif
+ubuntu_20.04.sif
 ```
 
 Now let's execute some Linux commands from within the container, `whoami` and `cat /etc/os-release`:
 
 ```bash
-singularity exec ubuntu20.04_latest.sif whoami
+singularity exec ubuntu_20.04.sif whoami
 ```
 ```output
-tutorial
+trainingxx
 ```
 
 ```bash
-singularity exec ubuntu20.04_latest.sif cat /etc/os-release
+singularity exec ubuntu_20.04.sif cat /etc/os-release
 ```
 ```output
 NAME="Ubuntu"
-VERSION="20.04.5 LTS (Focal Fossa)"
+VERSION="20.04.4 LTS (Focal Fossa)"
 ID=ubuntu
 ID_LIKE=debian
-PRETTY_NAME="Ubuntu 20.04.5 LTS"
+PRETTY_NAME="Ubuntu 20.04.4 LTS"
 VERSION_ID="20.04"
 HOME_URL="https://www.ubuntu.com/"
 SUPPORT_URL="https://help.ubuntu.com/"
@@ -149,15 +137,15 @@ By default, the cache is stored in `~/.singularity`; this location can be custom
 A subcommand, `singularity cache`, can be used to manage the cache.
 
 
-#### Shifter
+#### Shifter (Optional: Use Perlmutter)
 
 Let's download the same Ubuntu image as above, using `shifterimg`:
 
 ```bash
-shifterimg pull ecpe4s/ubuntu20.04
+shifterimg pull ubuntu:20.04
 ```
 ```output
-2022-10-11T05:25:11 Pulling Image: docker:ecpe4s/ubuntu20.04, status: READY
+2022-10-11T05:25:11 Pulling Image: docker:ubuntu:20.04, status: READY
 ```
 
 Locally stored images are managed by Shifter itself:
@@ -166,38 +154,38 @@ Locally stored images are managed by Shifter itself:
 shifterimg images
 ```
 ```output
-mycluster  docker     READY    369c047181   2022-10-11T05:25:11 ecpe4s/ubuntu20.04:latest                  
+perlmutter docker     READY    8e5c4f0285   2024-11-11T12:43:04 ubuntu:20.04
 ```
 
-What's the container user with Shifter?  Let's use both `id -u` and `whoami`:
+What's the container user with Shifter?  Let's use both `id -u` and `whoami` (Note: the response depends on your training account):
 
 ```bash
-shifter --image=ecpe4s/ubuntu20.04 whoami
+shifter --image=ubuntu:20.04 whoami
 ```
 ```output
-tutorial
+train5
 ```
 
 ```bash
-shifter --image=ecpe4s/ubuntu20.04 id -u
+shifter --image=ubuntu:20.04 id -u
 ```
 ```output
-1001
+12962
 ```
 
 Again, these come from the host.
 
 You can try more Linux commands:
 
 ```bash
-shifter --image=ecpe4s/ubuntu20.04 cat /etc/os-release
+shifter --image=ubuntu:20.04 cat /etc/os-release
 ```
 ```output
 NAME="Ubuntu"
-VERSION="20.04.5 LTS (Focal Fossa)"
+VERSION="20.04.6 LTS (Focal Fossa)"
 ID=ubuntu
 ID_LIKE=debian
-PRETTY_NAME="Ubuntu 20.04.5 LTS"
+PRETTY_NAME="Ubuntu 20.04.6 LTS"
 VERSION_ID="20.04"
 HOME_URL="https://www.ubuntu.com/"
 SUPPORT_URL="https://help.ubuntu.com/"
@@ -230,7 +218,7 @@ world
 and with Shifter:
 
 ```bash
-shifter --image=ecpe4s/ubuntu20.04 bash -c 'echo $HELLO'
+shifter --image=ubuntu:20.04 bash -c 'echo $HELLO'
 ```
 ```output
 world
@@ -248,7 +236,7 @@ singularity exec -e ubuntu20.04_latest.sif bash -c 'echo $HELLO'
 and `-E` with Shifter:
 
 ```bash
-shifter -E --image=ecpe4s/ubuntu20.04 bash -c 'echo $HELLO'
+shifter -E --image=ubuntu:20.04 bash -c 'echo $HELLO'
 ```
 ```output
 
@@ -276,7 +264,7 @@ moon
 And with Shifter:
 
 ```bash
-shifter -E --env BYE="moon" --image=ecpe4s/ubuntu20.04 bash -c 'echo $BYE'
+shifter -E --env BYE="moon" --image=ubuntu:20.04 bash -c 'echo $BYE'
 ```
 ```output
 moon
@@ -289,7 +277,7 @@ By default and similar to Docker, Podman isolates host and container shell envir
 
 ```bash
 export HELLO="world"
-podman run ecpe4s/ubuntu20.04 bash -c 'echo $HELLO'
+podman run ubuntu:20.04 bash -c 'echo $HELLO'
 ```
 ```output
 
@@ -298,7 +286,7 @@ podman run ecpe4s/ubuntu20.04 bash -c 'echo $HELLO'
 You can pass specific variables to the container by using the flag `-e`:
 
 ```bash
-podman run -e HELLO ecpe4s/ubuntu20.04 bash -c 'echo $HELLO'
+podman run -e HELLO ubuntu:20.04 bash -c 'echo $HELLO'
 ```
 ```output
 world
@@ -307,7 +295,7 @@ world
 Or even redefine variables, with the same flag:
 
 ```bash
-podman run -e HELLO=moon ecpe4s/ubuntu20.04 bash -c 'echo $HELLO'
+podman run -e HELLO=moon ubuntu:20.04 bash -c 'echo $HELLO'
 ```
 ```output
 moon
@@ -387,7 +375,7 @@ podman run marcodelapierre/ubuntu_workdir:18.04 pwd
 ```
 
 ```bash
-podman run ecpe4s/ubuntu20.04 pwd
+podman run ubuntu:20.04 pwd
 ```
 ```output
 /